HomeMy WebLinkAboutAgenda Packet 03/15/2004 p TAN AGENDA
OR 'GELES CITY COUNCIL MEETING
W A S Iq I n g T O N, U.S.a. 321 EAST FIFTH STREET
March 15, 2004
SPECIAL MEETING - 4:00 p.m.
A. CALL TO ORDER - Special Meeting (4:00 p.m.)
ROLL CALL -
PLEDGE OF ALLEGIANCE -
B. OTHER CONSIDERATIONS: I [
8t~ Street Bridge Replacement Workshop and Select Preferred Alternative
Selection of Preferred Alternative
C. ADJOURNMENT
G:\CNCLPKTLa, GENDA\2904kMar 15 '04 spec cc rntg.wpd
PUBLIC HEARINGS
Public hearings are set by the City Council n order to meet ega requ rements pertaining to matters such as, land use permit applications, proposed
amendments to City land use regulations, zoning changes, annexations. In addition; the City Council may set a public hearing in order to receive
public input prior to making decisions which impact the citizens. Certain matters may be controversial, and the City Council may choose to seek
public opinion through the public hearing process.
NOTE: HEARING DEVICES AVAILABLE FOR THOSE NEEDING ASSISTANCE
MAYOR TO DETERMINE TIME OF BREAK
March 15, 2004 Port Angeles City Council Meeting Page - !
pORTANGELE$ CITY COUNCIL SPECIAL MEETING
WASHINGTON, U.S.A.
March 15, 2004
I. CALL TO ORDER - REGULAR MEETING:
II. ROLL CALL:
Members Present:
Mayor Headrick
Councilmember Braun
Councilmember Erickson
Councilmember Munro
Councilmember Pittis
Councilmember Rogers
Councilmember Williams
Staff Present: Other Staff Presem:
Manager Quinn t/'~'' ~.; ~z¢-trt ~'
Attorney Dickson t..~'~'' ~/'J X~t~_Jc~t_
Clerk Upton ~ ~~__~,-.~ (J
B. Collins c//''' ~
M. Connelly
G. Cutler t.~~'
D. McKeen
T. Riepe
Y. Ziomkowski
III. PLEDGE OF ALLEGIANOE:
Led by: ~~'
pORTANGELES CITY COUNCIL SPECIAL MEETING
~ ~ ~.,. ~ ~ o .. u.s.A. Attendance Roster
DATE OF MEETING: March 15, 2004
LOCATION: City_ Council Chambers
poa :AN s
WASHINGTON, U.S.A.
CITY MANAGER'S OFFICE
March 1, 2004
TO: Members of City of Port Angeles Boards, Commissions & Committees
Law Enforcement Advisory Board
Lodging Tax Advisory Committee
Parks, Recreation & Beautification Commission
Planning Commission
Port Angeles Forward Executive Committee
Utility Advisory Committee
FROM: Michael Quinn, City Manager (~t4~
SUBJECT: Invitation to Special City Council Meeting
Replacement of 8th Street Bridges
On Monday, March 15, 2004, at 4:00 p.m., in the Cit~ Council Chambers, the Port
Angeles City Council will conduct a special meeting for the purpose of selecting a
preferred alternate design/concept in order to proceed with preliminary engineering,
permitting, and design.
Although this special meeting will be conducted as a Council work session and not a
public heating, the Councilmembers felt you might like to attend in order to be kept
aware of issues pertinent to the replacement of the bridges. This will enable you to fully
understand the bridge replacement project and ultimately share the information you have
gained with fellow members of the community.
If your schedule allows, please join us by attending this most informative meeting.
321 EAST FIFTH STREET · P. O. BOX 1150 · PORT ANGELES, WA 98362-0217
PHONE: 360-417-4500 · FAX: 360-417-4509 · TTY: 360-417-464.5
E-MAIL: CITYMG R~Cl. PORT-ANGELES.WA. U S
pOR'TANGEL ES
WASHINGTON, U.S.A.
C:ITY GOUNC;IL MEMO
DATE: March 15, 2004
TO: CITY COUNCIL
FROM: Glenn A. Cutler, Director of Public Works and Utilities2>U't/
SUBJECT: 8th Street Bridge Replacements Workshop and Selection of Preferred Akernate
Summary: Eight alternate 8th street bridge replacement designs have been presented via a public
information and outreach process to gather data for selection of the desired alternate to proceed
into the permitting and final design phase of the project. This evening City staff and Exeltech
will conduct a workshop to enable you to select a preferred design alternate.
Recommendation: Participate in the workshop, review the alternate selection process, and
select a preferred bridge type alternate to proceed into permitting and design.
Background/Analysis: The City's consultant for the 8th Street Bridge Replace~nents project,
Exeltech, has developed eight alternate bridge types for consideration. These alternates were
presented at meetings with the various City, County, State, and Tribal agencies. They were also
presented at meetings of the PABA, Chamber of Commerce, and at two public open house
meetings. The turnouts were excellent for each meeting, with quality comments and concerns
received from the participants regarding the alternates and overall project impacts. In addition, a
project website was developed to present the alternates under consideration and provide project
information. A summary of the comments received following the public information and
outreach process has been posted to the project website. The project website can be reached via a
link on the City's website ( www.ci.port-angeles.wa.us ).
The next step in the project process is to select a preferred alternate. Selection will allow the
consultant to commence permitting, prepare the Type, Size, and Location (TS&L) report required
for WSDOT, and proceed with preliminary and final design. A matrix of the factors involved in
selection of the preferred alternate was reviewed by City staff. The process was also discussed
with WSDOT staff. The City's consultant will present the matrix and recommendation in a
workshop to provide Council members with the background behind the recommendation and
assist in discussions leading to a final selection of the preferred alternate in order to proceed to
the next stage of the project without delays.
N:\CCOUNCIL\F1NAL\Sth St Br Repl Wrkshp-Select.wpd
Alternative 1:
Precast Concrete Girder Bridge
Pier Locations and Span Lengths: Advantages:
Five piers with spans ranging from 80 to 170 feet apart. Two pier · Standard construction methods.
foundations would be on the side slopes and three pier · Could accommodate future widening.
foundations on the valley floor. · Minimal future maintenance.
Anticipated Construction Duration (per bridge):
55 weeks Disadvantages:
· Less flexibility for redevelopment under bridges.
· Environmental impacts from three pier foundations located in the
Traffic During Construction (per bridge): valleys.
Traffic lane restrictions would be applied to one bridge at a time. .
The other would remain unrestricted. · Large girders may be stored in valleys during construction.
· Difficult access to Valley Creek Bridge with large girders.
Traffic would be restricted to one lane for approximately 26 · Bridge would be temporarily restricted to one lane of traffic during
weeks per bridge. Possible night and weekend closures. One construction period.
sidewalk would be available for pedestrian/bicycle use during
construction.
Preliminary Cost Estimate (per bridge):
$4.4M to $5.6M
Alternative 2:
Steel Plate Girder Bridge
Pier Locations and Span Lengths: Advantages
Five piers with spans ranging from 80 to 170 feet apart. Two pier · Standard construction methods.
foundations would be on the side slopes and three pier foundations · Light structural components easy to transport.
on the valley floor. · Precast concrete deck panels would allow for shorter construction
Anticipated Construction Duration (per bridge): duration.
Option 1:44 weeks - One lane open · Could accommodate future widening.
Option 2:55 weeks - Two lanes open · Two lanes could potentially remain open on the bridge during
Traffic During Construction (per bridge): construction.
Traffic lane restrictions would be applied to one bridge at a time.
The other bridge would remain unrestricted. Disadvantages
Option 1: Traffic would be restricted to one lane for approximately · Less flexibility for redevelopment under bridges.
26 weeks per bridge. Possible night and weekend closures. One · Environmental impacts from three pier foundations located on the
sidewalk would be available for pedestrian/bicycle use during valley floor.
construction.
· Long-term maintenance cost for required painting.
Option 2: Traffic would be open to two lanes throughout
construction. Possible night and weekend closures. · Option 1 would temporarily restrict the bridge to one lane of traffic
Pedestrians/Bicycles would be bussed during traffic restriction during the construction period.
periods. · Option 2 would require temporary bussing of pedestrians/bicycles
Preliminary Cost Estimate (per bridge): during the construction period.
Option 1: $4.3M to 5.8M (One lane open)
Option 2: $5.0M to $7.0M (Two lanes open)
Alternative 3:
Concrete Box Girder Bridge
Pier Locations and Span Lengths: Advantages
Three piers with spans ranging from 145 to 225 feet apart. Two · Less environmental impact due to fewer pier foundations located on
pier foundations would be located near the toe of slopes and one the valley floor/slopes.
pier foundation would be near the center of the valley floor.
· Minimal future maintenance required.
Anticipated Construction Duration (per bridge): · Could accommodate future widening.
Option 1:65 weeks - One lane open · Two lanes could potentially remain open on bridge during
Option 2:76 weeks - Two lanes open construction.
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge at a time. The Disadvantages
other bridge would remain unrestricted. · More specialized construction methods required.
Option 1: Traffic would be restricted to one lane for approximately · Longer construction duration,
30 weeks per bridge. Possible night and weekend closures. One
sidewalk would be available for pedestrian/bicycle use during · Option 1 would temporarily restrict the bridge to one lane of traffic
construction, during the construction period.
Option 2: Traffic would be open to two lanes throughout · Option 2 would require temporary bussing of pedestrians/bicycles
construction. Possible night and weekend closures, during the construction period.
Pedestrians/Bicycles would be bussed during traffic restriction
periods,
Preliminary Cost Estimate (per bridge):
Option 1: $4,9M to $6.0M (One lane open)
Option 2: $5.8M to $8.0M (Two lanes open)
Alternative 4:
Concrete Arch Bridge
Span Lengths: Advantages
Arch span approximately 530 feet long. Arch supports located on · Greater flexibility for redevelopment under bridges.
valley slopes. · Could accommodate future widening.
Anticipated Construction Duration (per bridge): · Less environmental impact due to fewer pier foundations located on
Option 1: 67 weeks - One lane open valley floor/slopes.
Option 2:72 weeks - Two lanes open · Minimal future maintenance required.
Traffic During Construction (per bridge): · Two lanes could potentially remain open on bridge during
Traffic restrictions would be applied to one bridge at a time. The construction.
other bridge would remain unrestricted,
Option 1: Traffic would be restricted to one lane for approximately Disadvantages
32 weeks per bridge. Possible night and weekend closures. One · More specialized construction methods required.
sidewalk would be available for pedestrian/bicycle use during · Long construction duration.
construction.
· Option 1 would temporarily restrict the bridge to one lane of traffic
Option 2: Traffic would be open to two lanes throughout during the construction period.
construction. Possible night and weekend closures.
Pedestrians/Bicycles would be bussed during traffic restriction · Option 2 would require temporary bussing of pedestrians/bicycles
periods, during the construction period.
Preliminary Cost Estimate (per bridge):
Option 1: $6.1M to $7.8M (One lane open)
Option 2: $7,3M to $9.9M (Two lanes open)
Alternative 5:
Steel Delta Frame Bridge
Pier Locations and Span Lengths: Advantages
Two piers with spans ranging from 104 to 195 feet apart. Both pier · Girders of moderate length could be stored above or below the
foundations would be located on the valley floor, bridges during construction.
· Light structural components easy to transport.
Anticipated Construction Duration (per bridge): · Short construction duration,
43 weeks
Disadvantages
Traffic During Construction (per bridge): · More specialized construction methods required.
Traffic restrictions would be applied to one bridge at a time. The · Environmental impacts from pier foundations located in the valleys.
other bridge would remain unrestricted. · Long-term maintenance cost for required painting.
· Less flexibility for redevelopment under bridges.
Traffic would be restricted to one lane for approximately 23 weeks · Bridge would be temporarily restricted to one lane of traffic during
per bridge. Possible night and weekend closures. One sidewalk construction period.
would be available for pedestrian/bicycle use during construction,
Preliminary Cost Estimate (per bridge): $4.1M to $5.5M
Alternative 6:
Concrete or Steel Slant Leg Bridge
Pier Locations and Span Lengths: Advantages
Two piers with spans ranging from 203 to 329 feet apart. Both pier · Greater flexibility for redevelopment under bridges.
foundations would be located on the valley slopes. · Shortest construction duration.
· Lighter structural components easy to transport.
Anticipated Construction Duration (per bridge): · Precast concrete deck panels would allow for shorter construction
39 weeks duration.
· Could accommodate future widening.
Traffic During Construction (per bridge): · Less environmental impacts due to fewer pier foundations located
Traffic restrictions would be applied to one bridge at a time. The on valley floor/slopes.
other bridge would remain unrestricted.
Disadvantages
Traffic would be restricted to one lane for approximately 20 weeks · ,",~,lore specialized copstruction methods required.
per bridge. Possible night and weekend closures. One sidewalk · Bridge would be temporarily restricted to one lane of traffic during
would be available for use by pedestrians/bicycles during construction period.
construction. · Potential of long-term maintenance costs for required painting of
steel structure.
Preliminary Cost Estimate (per bridge):
$4.8M to $6.1M
Alternative 7:
Basket Handle Steel Arch Bridge
Span Lengths: Advantages
Arch span approximately 454 feet long. Arch supports located on · Greater flexibility for redevelopment under bridges.
valley slopes. · Lighter components easy to transport.
Anticipated Construction Duration (per bridge): · Less environmente! impact due to no pier foundations located on the
Option 1:41 weeks - One lane open valley floor/slopes.
Option 2:45 weeks - Two lanes open · Could accommodate future widening.
Traffic During Construction (p~r bridge): · Pmca~t con~,"ete d~ck 13an~!s wo~!d ~tiow for shorter construction
Traffic restrictions would be applied to one bridge at a time. The duration.
other bridge would remain unrestricted. · Two lanes could potentially remain open on bridge during
Option 1: Traffic would be restricted to one lane for approximately construction.
30 weeks per bridge. Night and weekend closures. One sidewalk
would be available for pedestrian/bicycle use during construction. Disadvantages
Option 2: Traffic would be open to two lanes throughout · More specialized construction methods required.
construction. Night and weekend closures. Pedestrians/Bicycles · Long-term maintenance cost for required painting.
would be bussed during traffic restriction periods.
· Option 1 would temporarily restrict the bridge to one lane of traffic
Preliminary Cost Estimate (per bridge): during the construction period.
Option 1: $10.8M to $13,8M (One lane open) · Option 2 would require temporary bussing of pedestrians/bicycles
Option 2:$12.1 M to $15.9M (Two lanes open) during the construction period.
· Future bridge widening would be limited by steel arch supports
Alternative 8:
Steel Arch Truss Bridge
Span Lengths: Advantages
Arch span approximately 420 feet long. Arch supports located on · Greater flexibility for redevelopment under bridges.
valley slopes. · Less environmental impacts due to no pier foundations on the valley
Anticipated Construction Duration (per bridge): floor/slopes.
Option 1:41 weeks - One lane open · Two lanes could potentially remain open on bridge during
Option 2:45 weeks - Two Isnes open cc.qstr,.,ction.
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge at a time. The Disadvantages
other bridge would remain unrestricted. · More specialized construction methods required.
Option 1: Traffic would be restricted to one lane for approximately · Long-term maintenance cost for required painting.
30 weeks per bridge. Night and weekend closures. One sidewalk · Future bridge widening would be limited by steel arch supports.
would be available for pedestrian/bicycle use during construction.
Option 2: Traffic would be open to two lanes throughout
construction. Night and weekend closures. Pedestrians/Bicycles
would be bussed during traffic restriction periods.
Preliminary Cost Estimate (per bridge):
Option 1: $9.3M to $11.9M (One lane open)
Option 2: $10.5M to $13.9M (Two lanes open)
Replace
Port Angeles
~.qe Rep~C~
2003 2004 2005 2006
Nov. Jan.
Phase I
T S & L (Analysis of Bridge Types).
I I
Funding ~ ,
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Phase
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Phase Ii ,' ,'
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Preliminary Design
I I
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Environmental Process ', IIIIII ~SEPA DNS
'1 I
Phase III ' '
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FinalDesign ' ' ~DOCUMENTsCONTRACT BID
!
I
~ i PROJECT CLOSEOUT
Phase IV Il ,
Il I
Construction Mngmt. ' ,
i !
I OPEN,HOUSJ
Public Outreach
Notice to Select Bridge Type
Proceed City Counc#
March 15, 2004
2
· Minimize disruption to local business, adjacent neighborhoods, and
traffic
· Improve response times: public safety, school and transit vehicles
· Improve access between residential areas and businesses
· Accommodate future growth and economic vitality
· Provide bridges meeting compatible and consistent long-term
transportation needs
· Public Participation
· Environmental Studies, Processes, and Permitting
· Safety- Vehicle/Pedestrian/Bicycle
· Aesthetics- Views, Community Pride, Form
· Community Access During Construction
3
Bridge Type 1: Precast ConCrete Girdbr ~ Bridge Type 2: Steel Plate Girder I ~ Bridge Type 3: Concrete Box Girder
Bridge Type 4: Concrete Arch Girder J Bridge Type 5: Steel Del~ Frame
/
Bridge Ty~ 6: Concrete or Steel Slant Leg ) ~ Bridge Ty~ 7: Basket Handle Steel Arch { Bridge Type 8: Steel Arch Truss
' x, -" '~ :,.' ~:. ' ,~.. ' . ., . . ' ~ ~. ~'~" :.,~., ~ * '-~37-'4:.t~,.f..~f .'
What We've Learned: · Concerns about:
- Construction Impacts/Constructability
- Traffic Management
- Aesthetics
- Environmental Impacts
- Cost
What We're Doing:
· Ongoing updates to project website
· One-on-One meetings with conce.rned Citizens/School
District/Tribe/Public Safety Agencies
· Preparing responses to public comments
· Bridge Type Selection Tool
· Future Public Outreach
- Ongoing meetings with concerned parties
- Open House #2 (Preferred Bridge Type)- July 2004
- Open House #3 (Construction)- Early 2005
- Construction Communication- 2005 (ongoing)
6
¸ III;
Option 1:
One Lane Open
'-- · ~ ·:?: ~, hase - Construction
Construct north half Construct foundations and piers only
Maintain one lane open, including sidewalk Maintain existing tra~c
Appx. 20 to 32 weeks
~Y~m~te~re~k Bridge~:<:T:'~1' ~ ~:~ ':~'~ ~:, *Night and
: ~ ~,~ ~: ~: ~ . ~,~ ~ ~ ~: closures 9
(Option 1)
Phase 2 - Construction
Construct south half Construct south half
Maintain two lanes open on new structure -- two 11' lanes Maintain one lane open, including sidewalk
& 4'6" sidewalk Continue to construct foundations and piers for north half
Appx. 20 to 32 weeks
*Night and
Tumwater Creek Bridge Valley Creek Bridge weekend
closures 10
(Option 1)
~e 3 - Construction
Construct sidewalk Construct north half
Open new structure Maintain two lanes open
Appx. 15 - 25 weeks
*Night and
Tumwater Creek Bridge Valley Creek Bridge
closures
11
(Option 1)
PhaSe 4- Construction
Open to all traffic, bicyclists, & pedestrians Construct sidewalk
Open new structure
*Night and
Tumwater Creek arid Valley Creek Bridge weekend
closures
12
Clng ~
,,,~ ........ ~,~
IIIII I ii I II IIII
Option 2:
Two Lanes Open
13
(option 2)
: ;;Phase 1:- C o n s tru c ti o n ~'~ ~.~ ,~,~,.~,~- -~
Construct both north & south sides Construct both north & south sides
Main~in ~o lanes of tra~c on existing structure Main~in ~o lanes of tra~c on existing structure
Must use shu~le bus for ~destrians & bicycles Must use shu~le bus for pedes~ians & bicycles
Appx. 25 - 35 weeks Appx. 25 - 35 weeks
Tumwater Creek Bridge Vailey Creek Bridge
14
~~ ~ll ~ ~ ,~, : : (Option 2)
Cons~uction center poAion Cons~uction center poAion
~in~in ~ ~ of ~ffic ~ newly cons~ucfion ~ons Main~in ~o ~nes of ~affic on ne~y cons~ction ~ons
- O~ lane on each side - No sidewalks - One lane on each side - No sidewalks
Must use shu~e bus for pedestrians & bicycles Must use shu~le bus for pedestrians & bicycles
Appx. 30 - 40 weeks Appx, 30 - ~ weeks
L ,,,~. ~ ,~: ...............
I
{~Thmwater Creek Bridge ~I :}il ffi ~ ~ ~ ~idge ~'!
_i~ Phase 3 Construction
Construct sidewalks & open to traffic Construct sidewalks & open to traffic
Alternate sidewalk construction to maintain pedestrian Alternate sidewalk construction to maintain pedestrian
traffic on one side of bridge at all times traffic on one side of bridge at all times
Appx. 6 - 8 weeks Appx. 6 - 8 weeks
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.... . ' ~ d~f~~ ....... ~ Pe~s~ia~cycm ro~s ounng
~ Tumwater Creek Bridge ~J l~.~g, g.~ 1 &:~,~ ValleY. Creek~~' --"~Br, dge
Bridge
Types
Bridge
Pier Locations and Span Lengths:
Five piers with spans ranging from 80 to 170 feet
apart. Two pier foundations would be on the side
slopes and three pier foundations on the valley
floor.
Anticipated Construction Duration (per bridge):
55 weeks
Traffic During Construction (per bridge):
Traffic lane restrictions would be applied to one
bridge at a time. The other would remain
unrestricted.
Traffic would be restricted to one lane for
approximately 26 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction. Advantages:
· Standard construction methods.
Preliminary Cost Estimate (per bridge)*:
$4.4M to $5.6M · Could accommodate future widening.
· Minimal future maintenance.
Disadvantages:
· Less flexibility for redevelopment under bridges.
· Environmental impacts from three pier foundations located in the valleys.
· Large girders may be stored in valleys during construction.
· Difficult access to Valley Creek Bridge with large girders.
· Bridge would be temporarily restricted to one lane of traffic during construction
period.
. * Bridge construction cost only 18
Pier Locations and Span Lengths:
Five piers with spans ranging from 80 to 170 feet
apart. Two pier foundations would be on the side
slopes and three pier foundations on the valley
floor.
Anticipeted Construction Duration (per bridge):
Option 1:44 weeks - One lane open
Option 2: §§ weeks - Two lanes open
Traffic During Construction (per bridge):
Traffic lane restrictions would be applied to one
bridge at a time. The other bridge would remain
unrestricted.
Option 1: Traffic would be restricted to one lane for
approximately 26 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction. Advantages
· Standard construction methods.
Option 2: Traffic would be open to mo lanes
throughout construction. Possible night and · Light structural components easy to transport.
weekend closures. Pedestrians/Bicycles would be· Precast concrete deck panels would allow for shorter construction duration.
bussed during traffic restriction periods. · Gould accommodate future widening.
· Two lanes could potentially remain open on the bridge during construction.
Preliminary Cost Estimate (per bridge)*:
Option 1: $4.3M to 5.8M (One lane open) Disadvantages
Option 2: $§.0M to $7.0M (Two lanes open) · Less flexibility for redevelopment under bridges.
· Environmental impacts from three pier foundations located on the valley floor.
· Long-term maintenance cost for required painting.
· Option 1 would temporarily restrict the bridge to one lane of traffic during the
construction period.
· Option 2 would require temporary bussing of pedestrians/bicycles during the
· Bridge construction cost only construction period. 19
Pier Locations and Span Lengths:
Three piers with spans ranging from 145 to 225
feet apart. Two pier foundations would be located
near the toe of slopes and one pier foundation
would be near the center of the valley floor.
Anticipated Construction Duration (per bridge):
Option 1:65 weeks - One lane open
Option 2:76 weeks - Two lanes open
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge
at a time. The other bridge would remain
unrestricted.
Option 1: Traffic would be restricted to one lane for
approximately 30 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction. Advantages
· Less environmental impact due to fewer pier foundations located on the valley
Option 2: Traffic would be open to two lanes
throughout construction. Possible night and floor/slopes.
weekend closures. Pedestrians/Bicycles would be · Minimal future maintenance required.
bussed during traffic restriction periods. · Could accommodate future widening.
· Two lanes could potentially remain open on bridge during construction.
Preliminary Cost Estimate (per bridge)*: Disadvantages
Option 1' $4.9M to $6.0M (One lane open) · More specialized construction methods required.
Option 2: $5.8M to $8.0M (Two lanes open)
· Longer construction duration.
· Option I would temporarily restrict the bridge to one lane of traffic during the
construction period.
· Option 2 would require temporary bussing of pedestrians/bicycles during the
construction period.
· Brid. ge construction cost only 20
Span Lengths:
Arch span approximately 530 feet long. Arch
supports located on valley slopes.
Anticipated Construction Duration (per bridge):
Option 1:67 weeks - One lane open
Option 2:72 weeks - Two lanes open
Traffic During Construction {per bridge):
Traffic restrictions would be applied to one bridge at
a time. The other bridge would remain unrestricted.
Option 1: Traffic would be restricted to one lane for
approximately 32 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction.
Option 2: Traffic would be open to two lanes
throughout construction. Possible night and
Advantages
weekend closures. Pedestrians/Bicycles would be
· Greater flexibility for redevelopment under bridges.
bussed during traffic restriction periods.
· Could accommodate future widening,
Preliminary Cost Estimate (per bridge)*: · Less environmental impact due to fewer pier foundations located on valley
Option 1: $6.1M to $7.8M (One lane open) floor/slopes.
Option 2: $7.3M to $9.9M (Two lanes open) · Minimal future maintenance required.
· Two lanes could potentially remain open on bridge during construction.
Disadvantages
· More specialized construction methods required.
· Long construction duration.
· Option 1 would temporarily restrict the bridge to one lane of traffic during the
construction period.
· Option 2 would require temporary bussing of pedestrians/bicycles during the
· Bridge construction cost only construction period. 21
Pier Locations and Span Lengths:
Two piers with spans ranging from 104 to 195 feet
apart. Both pier foundations would be located on
the valley floor.
Anticipated Construction Duration (per bridge):
43 weeks
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge at
a time. The other bridge would remain unrestricted.
Traffic would be restricted to one lane for
approximately 23 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction.
Preliminary Cost Estimate (per bridge)*:
$4.1M to $5.5M Advantages
· Girders of moderate length could be stored above or below the
bridges during construction.
· Light structural components easy to transport.
· Short construction duration.
Disadvantages
· More specialized construction methods required.
· Environmental impacts from pier foundations located in the valleys.
· Long-term maintenance cost for required painting.
· Less flexibility for redevelopment under bridges.
· Bridge would be temporarily restricted to one lane of traffic during
construction period.
· * Bridge construction cost only 22
Bridge
Pier Locations and Span Lengths:
Two piers with spans ranging from 203 to 329 feet
apart. Both pier foundations would be located on
the valley slopes.
Anticipated Construction Duration (per bridge): 39 weeks
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge at
a time. The other bridge would remain unrestricted.
Traffic would be restricted to one lane for
approximately 20 weeks per bridge. Possible night
and weekend closures. One sidewalk would be
available for use by pedestrians/bicycles during
construction.
Preliminary Cost Estimate (per bridge)*:
$4.8M to $6.1M Advantages
· Greater flexibility for redevelopment under bridges.
· Shortest construction duration.
· Lighter structural components easy to transport.
· Precast concrete deck panels would allow for shorter construction duration.
· Could accommodate future widening.
· Less environmental impacts due to fewer pier foundations located on valley
floor/slopes.
Disadvantages
· More specialized construction methods required.
· Bridge would be temporarily restricted to one lane of traffic during construction
period.
* Bridge construction cost only · Potential of long-term maintenance costs for required painting of steel structure. 23
Bridge
Span Lengths:
Arch span approximately 454 feet long. Arch
supports located on valley slopes.
Anticipated Construction Duration (per bridge):
Option 1:41 weeks - One lane open
Option 2:45 weeks - Two lanes open
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge at
a time. The other bridge would remain unrestricted.
Option 1: Traffic would be restricted to one lane for
approximately 30 weeks per bridge. Night and
weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction.
Option 2: Traffic would be open to two lanes
throughout construction. Night and weekend Advantages
closures. Pedestrians/Bicycles would be bussed · Greater flexibility for redevelopment under bridges.
during traffic restriction periods. · Lighter components easy to transport.
· Less environmental impact due to no pier foundations located on valley floor/slopes.
Preliminary Cost Estimate (per bridge)*: · Could accommodate future widening.
Option 1' $10.8M to $13.8M (One lane open)
Option 2: $12.1M to $15.9M (Two lanes open) · Precast concrete deck panels would allow for shorter construction duration.
· Two lanes could potentially remain open on bridge during construction.
Disadvantages
· More specialized construction methods required.
· Long-term maintenance cost for required painting.
· Option 1 would temporarily restrict the bridge to one lane of traffic during
construction period.
· Option 2 would require temporary bussing of pedestrians/bicycles during
construction period.
· Bridge construction cost only · Future bridge widening would be limited by steel arch supports 24
Span Lengths:
Arch span approximately 420 feet long. Arch
supports located on valley slopes.
Anticipated Construction Duration (per bridge):
Option 1:41 weeks - One lane open
Option 2:45 weeks - Two lanes open
Traffic During Construction (per bridge):
Traffic restrictions would be applied to one bridge
at a time. The other bridge would remain
unrestricted.
Option 1: Traffic would be restricted to one lane for
approximately 30 weeks per bridge. Night and
weekend closures. One sidewalk would be
available for pedestrian/bicycle use during
construction.
Option 2: Traffic would be open to two lanes Advantages
throughout construction. Night and weekend
closures. Pedestrians/Bicycles would be bussed · Greater flexibility for redevelopment under bridges.
during traffic restriction periods. · Less environmental impacts due to no pier foundations on the valley floor/slopes.
· Two lanes could potentially remain open on bridge during construction.
Preliminary Cost Estimate (per bridge)*:
Option 1: $9.3M to $11.9M (One lane open) Disadvantages
Option 2: $10.5M to $13.9M (Two lanes open)
· More specialized construction methods required.
· Long-term maintenance cost for required painting.
· Future bridge widening would be limited by steel arch supports.
* Bridge construction cost only 25
per ,age
Preliminary Design $ 0.5 m
Final Design and Construction Management $ 0.8 m
Bridge Construction $ 5.3 m
Roadway Construction, Traffic Management, Property $1.6 m
Acquisition, Environmental Mitigation, Contingencies
Total $ 8.2 m*
* Total project funding agreement with Washington State Department of
Transportation (WSDOT). t
t If the cost of the selected Bridge Type is not the lowest cost, then the
selected Bridge Type must be supported by WSDOT in approval of the
Type, Size and Location (TS&L) Report.
Maximum financing at 100% funding is $10 m.
26
Questions
27
What We're Going to Discuss Next:
· Bridge Type Selection Tool
- Evaluation Criteria
· Construction Impacts
· Environmental Impacts
· Constructability
· Aesthetics
· Cost
- Methodology
· Scoring
· Weighting
28
Objectives
Ub c outreach
Findings
Work Session
\~,March 15, 2004
Bridge Type 29
TOol
Findings I Conclusions
Identify Criteria from the Identi~ £¥aluation Criteria
Public Outreach
Findings and Engineers' ~
Conclusions Establish Method
· Establish a method for
evaluating the Criteria
3O
Evaluation Criteria
- Construction Impacts
- Environmental Impacts
- Constructability
- Aesthetics
- Cost
31
TOol
Methodology
-Scoring- 1 to 5
· I (High Negative Impact)
· 5 (High Positive Benefit)
-Weighting- 100 points total
· Construction Impacts: 30 points
· Environmental Impacts: 15 points
· Constructability: 15 points
· Aesthetics: 15 points
· Cost: 25 points
32
TOol
Impacts Common to All Bridge Types - Stormwater management
- Temporary 48-hour bridge closures
- Bridge closure will require bussing of pedestrians
and bicyclists
- Streetscape and detailed design elements
- Meet earthquake design criteria
- Accommodates future widening to four lanes
- Accommodates utilities
-Location of construction staging area(s)
33
Tool
criteria Number 1:
Construction Impacts
Weight: 30 points
34
..........u,, TOol
Criteria Number2: : 7=
Environmental Impacts
Weight: 15 points
35
TOol
riteria Number 3:
Constructability
Weight: 15 points
36
Criteria Number 4:
Aesthetics
Weight: 15 points
Truck Route and Valley street
37
:
C rite ri a NUm ber 5 ~,~,~
Cost*
Weight: 25 points
'fivaluation Criteria do~ not in~lud~ ~lannin~, D~si~n, and ~rmittin~
Tool
Bridge Type 1: Bridge Type 2: Bridge Type 3: Bridge Type 4: Bridge Type 5: Bridge Type ;: Bridge Type 7: Bridge Type 8:
Total Weight: Precast Steel Plate Concrete Box Concrete Arch Steel Delta Concrete or Basket Handle Steel Arch
100 points Concrete Girder Bridge Girder Bridge Girder Bridge Frame Bridge Steel Slant Leg Steel Arch Truse Bridge
Girder Bridge Bridge Bridge
Construction 2.1 2.4 1.7 1.7 2.7 3.1 2.2 2.2
Impacts
Weight: 30 points N/A 3.0 2.7 2.7 NIA NIA 3.1 3.1
Environmental 1.8 2.3 2.5 3.8 3.1 4.8 4.6 4.6
Impacts
Weight: 15 Ix)in. NIA 2.3 2.8 4.0 NIA NIA
4.8
4.8
3.4 3.9 2.1 1.7 3.5 3.5 1.9 2.1
Construct~ility
Weight: 15 points
NIA 3.9 2.1 1.7 N/A N/A 1.9 2.1
3.0 3.0 3.3 4.0 3.3 3.8 4.8 4.0
Aesthetics
Weight: 15 points
N/A 3.0 3.3 4.0 N/A NIA 4.8 4.0
4.3 4.0 4.0 3.5 4.0 3.5 1.5 1.5
Cost
Weight: 25 points
N/A 3.8 3.8 3,3 N/A NIA 1.5 1,5
TOZ~L 293 310 269 281 330 362 273 265
WEIGHTED
SCORESN/A 321 297 308 NIA NIA 303 295
TOol
tsr, age ype
Rank Option Score
1 Type 6: Concrete or Steel Slant Leg Option 1 362
2 Type 5: Steel Delta Frame Option 1 330
3 Type 2: Steel Plate Girder Option 2 321
4 Type 2: Steel Plate Girder Option 1 310
5 Type 4: Concrete Arch Option 2 308
6 Type 7: Basket Handle Steel Arch Option 2 303
7 Type 3: Concrete Box Girder Option 2 297
8 Type 8: Steel Arch Truss Option 2 295
9 Type 1: Precast Concrete Girder Option 1 293
10 Type 4: Concrete Arch Option 1 281
11 Type 7: Basket Handle Steel Arch Option 1 273
12 Type 3: Concrete Box Girder Option 1 269
13 Type 8: Steel Arch Truss Option 1 265
Type 1: Precast Concrete Girder
'14 Type 5: Steel Delta Frame Option 2 N/A
Type 6: Concrete or Steel Slant Leg
4O
City Council
Decision
Port Angeles 8th Street Bridge Re )lacements - Bridge Type Comparison
Bridge Type 1 - Precast Concrete Girder Bridge Bridge Type 2 - Steel Plate Girder Bridge Bridge Type 3 - Concrete Box Girder Bridge Bridge Type 4 - Concrete Arch Bridge
Pier Locations and Span Pier Locations and Span Pier Locations and Span Pier Locations and Span
Lengths: Lengths: Lengths: Lengths:
Five piers with spans ranging Five piers with spans ranging Three piers with spans ranging Arch span approximately 530
from 80 to 170 feet apart, from 80 to 170 feet apart. Two from 145 to 225 feet apart. Two feet long. Arch supports located
Two pier foundations would pier foundations would be on pier foundations would be near on valley slopes.
be on the side slopes and the side slopes and three pier the toe of slopes and one near
three pier foundations on the foundations on the valley floor, the center of the valley floor. Anticipated Construction
Advantages: Disadvantages: valley floor. Advantages: Disadvantages: Advantages: Disadvantages: Advantages: Disadvantages: Duration (per bridge):
Anticipated Construction Anticipated Construction Option 1 - 67 weeks
*Standard *Less flexibility for Anticipated Construction *Standard *Less flexibility for Duration (per bridge): *Less environmental *More specialized Duration (per bridge): *Greater flexibility for *More specialized Option 2 - 72 weeks
construction redevelopment Duration (per bridge): construction redevelopment Option 1 - 44 weeks impact due to fewer construction Option 1 - 65 weeks redevelopment construction
methods, under bridges. Option 1 - 55 weeks methods, under bridges. Option 2 - 55 weeks pier foundations on methods required. Option 2 - 76 weeks under bridges, methods required. Traffic During Construction
the valley (per bridge):
*Minimal future *Environmental Traffic During Construction *Light structural *Environmental Traffic During Construction floor/slopes. *Longer Traffic During Construction *Less environmental *Longer
maintenance impacts from three (per bridge): components easy to impacts from three (per bridge): construction (per bridge): impact due to fewer construction Option 1 - Traffic would be
required, pier foundations transport, pier foundations *Minimal future duration, pier foundations on duration, restricted to one lane for
located on the valley Option I - Traffic would be located on the Option 1 - Traffic would be maintenance Option 1 - Traffic would be the valley approximately 32 weeks per
floors, restricted to one lane for *Precast concrete valley floors, restricted to one lane for required, restricted to one lane for floor/slopes, bridge. One sidewalk would be
approximately 26 weeks per deck panels would approximately 26 weeks per approximately 30 weeks per available for pedestrian/bicyclist
*Large girders may bridge. One sidewalk would allow for shorter *Long-term bridge. One sidewalk would be bridge. One sidewalk would be *Minimal future use.
be stored in valleys be available for construction duration, maintenance cost available for pedestrian/bicyclist available for pedestrian/bicyclist maintenance
during construction, pedestrian/bicyclist use. required for use. use. required. Option 2 - Traffic would be open
painting of steel to two lanes throughout
*Difficult access to Preliminary Cost Estimate structure. Option 2 - Traffic would be open Option 2 - Traffic would be open construction. No sidewalks
Valley Creek Bridge (per bridge): to two lanes throughout to two lanes throughout would be available during traffic
with large girders. Option 1 - $4.4M to $5.6M^ construction. No sidewalks construction. No sidewalks restriction periods.
would be available during traffic would be available during traffic Pedestrians/Bicyclists would be
*Bridge can not have restriction periods, restriction periods, bussed.
two traffic lanes Pedestrians/Bicyclists would be Pedestrians/Bicyclists would be
open at all times bussed, bussed. Preliminary Cost Estimate
during construction. (per bridge):
Preliminary Cost Estimate Preliminary Cost Estimate Option 1 ~ $6.1M to $7.8M^
(per bridge): (per bridge): Option 2 - $6.6M to $8.3M^
Option 1 - $4.3M to $5.8M^ Option 1 - $4.9M to $6.0M^
Option 2 - $4.5M to $6.0M^ Option 2 - $5.2M to $6.7M^
^Bridge construction cost only ^Bridge construction cost only ^Bridge construction cost only ^Bridge construction cost only
Bridge Type 5 - Steel Delta Frame Bridge Bridge Type 6 - Concrete or Steel Slant Leg Bridge Bridge Type 7 - Basket Handle Arch Bridge Bridge Type 8 - Steel Arch Bridge
Pier Locations and Span Pier Locations and Span Pier Locations and Span Pier Locations and Span
Lengths: Lengths: Lengths: Lengths:
Two piers with spans ranging Two piers with spans ranging Arch span approximately 454 Arch span approximately 420
from 104 to 195 feet apart, from 203 to 329 feet apart. Both feet long. Arch supports located feet long. Arch supports located
Both pier foundations would pier foundations would be on valley slopes, on valley slopes.
be located on the valley floor, located on the valley slopes. Anticipated Construction Anticipated Construction
Advantages: Disadvantages: Anticipated Construction Advantages: Disadvantages: Anticipated Construction Advantages: Disadvantages: Duration (per bridge): Advantages: Disadvantages: Duration (per bridge):
Duration (per bridge): Duration (per bridge): Option 1 - 41 weeks Option 1 - 41 weeks
*Girders of *More specialized Option 1 - 43 weeks *Greater flexibility for *More specialized Option 1 - 39 weeks *Greater flexibility for *More specialized Option 2 - 45 weeks *Greater flexibility for *More specialized Option 2 - 45 weeks
moderate length construction redevelopment under construction redevelopment under construction redevelopment construction
could be stored methods required. Traffic During Construction bridges, methods required. Traffic During Construction bridges. Traffic During Construction under bridges, methods required. Traffic During Construction
above or below (per bridge): (par bridge): methods required. (per bridge): (per bridge):
the bridges *Environmental *Shortest *Potential of long- *Light structural *Less environmental *Long-term
during impacts from pier Option 1 - Traffic would be construction duration, term maintenance Option 1 - Traffic would be components easy to *Long-term Option 1 - Traffic would be impact due to no pier maintenance costs Option 1 - Traffic would be
construction, foundations located restricted to one lane for costs required for restricted to one lane for transport, maintenance costs restricted to one lane for foundations on the required for restricted to one lane for
on the valley floors, approximately 23 weeks per *Light structural painting of steel approximately 20 weeks per required for approximately 30 weeks per valley floor/slopes, painting of steel approximately 30 weeks per
*Light structural bridge. One sidewalk would components easy to structure, bridge. One sidewalk would be *Less environmental painting of steel bridge. One sidewalk would be structure, bridge. One sidewalk would be
components *Long-term be available for transport, available for pedestrian/bicyclist impact due to no pier structure, available for pedestrian/bicyclist available for pedestrian/bicyclist
easy to maintenance cost pedestrian/bicyclist use. *Precast concrete *Bridge can not use. foundations on the use. *Future bridge use.
transport, required for painting have two traffic valley floor/slopes. *Future bridge Option 2 - Traffic would be open widening would be Option 2 - Traffic would be open
of steel structure. Preliminary Cost Estimate deck panels would lanes open at all Preliminary Cost Estimate limited by steel
*Short (per bridge): allow for shorter times during (per bridge): *Precast concrete widening would be to two lanes throughout to two lanes throughout
construction *Less flexibility for construction duration, construction, arch supports, would be available during traffic would be available during traffic
duration, redevelopment Option 1 - $4.1M to $5.5M^ Option 1 - $4.8M to $6.1M^ allowdeCk panelSfor shorterW°Uld limited by steel construction. No sidewalks arch supports, construction. No sidewalks
under bridges. *Less environmental construction restriction periods, restriction periods.
impacts due to no duration. Pedestrians/Bicyclists would be Pedestrians/Bicyclists would be
*Bridge can not have 3ier foundations on bussed, bussed.
two traffic lanes the valley
open at all times floor/slopes. Preliminary Cost Estimate Preliminary Cost Estimate (per
during construction. (per bridge): bridge):
Option I - $10.8M to $13.8M^ Option 1 - $9.3M to $11.9M^
Option 2 - $10.9M to $13.9M^ Option 2 - $9.5M to $12.1M^
^Bridge construction cost only ^Bridge construction cost only ^Bridge construction cost only ^Bridge construction cost only
Bridge Type Selection Tool
Bridge Type 1: I Bridge Type 2: Bridge Type 3: Bridge Type 4: Bridge Type 5: Bridge Type 6: Bridge Type 7: Bridge Type 8:
Evaluation Criteria Precasl~ Concrete I Steel Plate Girder Concrete Box Girder Concrete Arch Steel Delta Frame Concrete or Steel Slan Basket Handle Steel Steel Arch Truss
Girder Bridge / Bridge Bridge Bridge Bridge Leg Bridge Arch Bridge Bridge
Average Score Opt. I 2.1 2.4 1.7 1.7 2.7 3,1 2.2 2.2
Weighted Score Opt. 1 64.3 72.9 51.4 51.4 81.4 94.3 66.4 66.4
~,verege Score Opt. 2 N/A 3.0 2.7 2.7 NIA N/A 3.1 3.1
~/eighted Score Opt. 2 NIA 90.0 81.4 81.4 NIA N/A 94.3 94.3
Opt. 1 2 4 1 1 4 5 4.5 4.5
Construction Duration
Opt. 2 N/A 4 2 2 N/A N/A 5 5
Opt. 1 4 4 3.5 3.5 4.5 5 3.5 3.5
Vehicle Delays and Access
Opt. 2 N/A 5 5 5 N/A N/A 5 5
Opt. 1 3 3 3 3 3 3 3 3
Bicycles
Opt. 2 N/A 2 2 2 N/A N/A 2 2
Opt. 1 3 3 3 3 3 3 3 3
Pedestrians
Opt. 2 N/A 2 2 2 N/A N/A 2 2
Opt. 1 1 1 0.5 0,5 1.5 2 0.5 0.5
Emergency Vehicles
Opt. 2 N/A 3 3 3 N/A N/A 3 3
Opt. 1 1 1 0.5 0.5 1.5 2 0.5 0.5
Transit and school buses
Opt. 2 N/A 3 3 3 N/A N/A 3 3
Opt. 1 1 1 0.5 0.5 1.5 2 0.5 0.5
Business Impacts
Opt. 2 N/A 2 2 2 N/A N/A 2 2
Average Score Opt. 1 1.8 2.3 2.5 3,8 3.1 4,8 4,6 4.6
Weighted Score Opt. 1 26.3 33,8 37.5 56,3 46,9 71,3 69.4 69,4
Average Score Opt. 2 NIA 2.3 2,8 4.0 NIA NIA 4,8 4.8
Weighted Score Opt. 2 NIA 33.8 41.3 60.0 NIA N/A 71.3 71,3
Opt. 1 I 1 3 4 2 4 4 4
Wetlands
Opt. 2 N/A I 3 4 N/A N/A 4 4
opt. 1 2 2 3 5 4 5 5 5
Streams
i Opt. 2 N/A 2 3 5 N/A N/A 5 5
I Opt. 1 2 4 1 1 3.5 5 4.5 4.5
Noise
Opt. 2 N/A 4 2 2 N/A N/A 5 5
! Opt. I 2 2 3 5 3 5 5 5
Long-term
land
use
~ Opt. 2 N/A 2 3 5 N/A N/A 5 5
Average Score I Opt. I 3.4 3.9 2.1 1.7 3.5 3.5 1.9 2.1
Weighted Score Opt. I 51.0 58,5 31.5 25.5 52.5 52.5 28.5 31.5
Average Score Opt. 2 N/A 3.9 2,1 1.7 NIA NIA 1.9 2.1
Weighted Score Opt. 2 N/A 58.5 31.5 25.5 N/A N/A 28.5 31.5
Opt, 1 3 3 4 3 3 3 1.5 1.5
Foundations
Opt. 2 N/A 3 4 3 N/A N/A 1.5 1.5
Opt. 1 4 5 1 1 3 3.5 1.5 1.5
Superstructure
Opt. 2 N/A 5 1 I N/A N/A 1.5 1.5
Construction Impacts on Opt. 1 1 1.5 1 0.5 4 4 3.5 3.5
Existing Structure Opt. 2 N/A 1.5 1 0.5 N/A N/A 3.5 3.5
Opt. 1 5 5 2 2 4 4 2,5 3
Specialized construction
Opt. 2 N/A 5 2 2 N/A N/A 2,5 3
Opt. 1 4 5 2.5 2 3.5 3 0.5 1
Risk
Opt. 2 N/A 5 2.5 2 N/A N/A 0.5 1
Average Score i Opt. I 3.0 3.0 3.3 4.0 3.3 3,8 4.8 4.0
INeighted Score ~ Opt. 1 45.0 45.0 48.8 60.0 48.8 56.3 71.3 60.0
Average Score Opt. 2 NIA 3.0 3.3 4.0 NIA NIA 4.8 4.0
INeighted Score Opt. 2 NIA 45.0 48.8 60.0 N/A N/A 71.3 60.0
View of the bridge from Opt. I 3 3 3.5 5 3.5 4.5 4.5 4
Tumwater Truck Route and
Valley Street Opt. 2 N/A 3 3.5 5 N/A N/A 4.5 4
Opt. 1 3 3 3 3 3 3 5 4
View from the bridge
Opt. 2 N/A 3 3 3 N/A N/A 5 4
Average Score Opt. I 4,3 4.0 4.0 3,5 4.0 3,5 1.5 1.5
/Veighted Score Opt. 1 106.3 100.0 100.0 87.5 100.0 87.5 37.5 37.5
Average Score Opt. 2 NIA 3.8 3.8 3.3 NIA NIA 1.5 1.5
Neighted Score Opt. 2 N/A 93.8 93.8 81.3 NIA NIA 37.5 37.5
Opt. I 4.5 5 4 3 5 4 1 1
Construction Cost
Opt. 2 N/A 4.5 3.5 2,5 N/A N/A 1 1
Opt. 1 4 3 4 4 3 3 2 2
Life Cycle (Maintenance) Cost
Opt. 2 N/A 3 4 4 N/A N/A 2 2
Average Score Opt. I 14.5 15.6 13.6 14.7 16.6 18.6 15.0 14.4
Weighted Score Opt. I 292.8 310.1 269.2 280.7 329.6 361.8 273.1 264,8
Average Score Opt. 2 N/A 15.9 14.6 15.7 NIA N/A 16.0 15.5
Weighted Score Opt. 2 N/A 321.0 296,7 308.2 NIA NIA 302.8 294.5
Bridoe Tvoe Rankin~I
1 opt. 3. Bridge Type 6: Concrete or Steel Slant Leg Bridge 362 9 Opt. 3. Bridge Type 1: Precast Concrete Girder Bridge 2.93
2 Opt. 3. Bridge Type 5: Steel Delta Frame Bridge '~t0 3.0 Opt. 3. Bridge Type 4: Concrete Arch Bridge ~81
3 Opt. 2 Bridge Type 2: Steel Plate Girder Bridge 321. 3.3. Opt. :t Bridge Type 7: Basket Handle Steel Arch Bridge 273
4 Opt. 3. Bridge Type 2: Steel Plate Girder Bridge 310 ].2 Opt, 3. Bridge Type 3: Concrete Box Girder Bridge 2.69
5 Opt. 2 Bridge Type 4: Concrete Arch Bridge 308 3.3 Opt. 3. Bridge Type 8: Steel Arch Truss Bridge 265
6 Opt. 2 Bridge Type 7: Basket Handle Steel Arch Bridge 303 Opt. 2 Bridge Type 6: Concrete or Steel Slant Leg Bridge N/A
7 Opt. 2 Bridge Type 3: Concrete Box Girder Bridge 297 1.4 Opt. 2 Bridge Type 5: Steel Delta Frame Bridge N/A
8 Opt. 2 Bridge Type 8: Steel Arch Truss Bridge 295 Opt- 2 Bridge Type 1: Precast Concrete Girder Bridge N/A