State Bridge Profile Washington 2014

1. © 2015 The American Road & Transportation Builders Association (ARTBA). All rights reserved. No part of this document may be reproduced or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of
ARTBA.
Highlights from FHWA’s 2014 National Bridge Inventory Data:
 Of the 8,120 bridges in the state, 382 bridges, or 5% are classified as structurally deficient. This
means one or more of the key bridge elements, such as the deck, superstructure or
substructure, is considered to be in “poor” or worse condition.1
 There are 1,711 bridges, or 21% of all state bridges, classified as functionally obsolete. This
means the bridge does not meet design standards that are in line with current practice.
 State and local contract awards for bridge construction totaled $3.92 billion over the past five
years, 50 percent of highway and bridge contract awards, compared to a national average of 29
percent.
 Since 2004, 705 new bridges have been constructed in the state and 140 bridges have
undergone major reconstruction.
 The state estimates that it would cost approximately $53.9 billion to fix a total of 5,802 bridges
in the state.2
Bridge Inventory:
All Bridges Structurally deficient Bridges
Type of Bridge
Total
Number
Area (sq.
meters)
Daily
Crossings
Total
Number
Area (sq.
meters)
Daily
Crossings
Rural Bridges
Interstate 294 345,996 4,626,977 30 44,603 398,570
Other principal arterial 552 431,034 3,103,070 27 44,978 156,956
Minor arterial 347 259,602 1,449,770 13 11,299 42,974
Major collector 1,289 538,594 2,134,215 77 33,312 120,326
Minor collector 770 202,948 483,538 21 6,007 13,239
Local 2,252 413,351 498,416 100 13,468 37,000
Urban Bridges
Interstate 649 1,629,848 26,665,817 12 120,149 251,985
Other freeway 481 1,296,176 12,483,418 10 126,996 224,306
Principal arterial 459 813,461 8,328,883 37 76,021 702,061
Minor arterial 506 589,560 5,121,080 32 66,163 326,805
Collector 236 202,340 1,197,889 9 5,331 32,988
Rural 285 132,745 526,915 14 2,724 16,061
Total 8,120 6,855,656 66,619,988 382 551,052 2,323,271
1
According to the Federal Highway Administration (FHWA), a bridge is classified as structurally deficient if the condition rating for the deck,
superstructure, substructure or culvert and retaining walls is rated 4 or below or if the bridge receives an appraisal rating of 2 or less for
structural condition or waterway adequacy. During inspections, the condition of a variety of bridge elements are rated on a scale of 0 (failed
condition) to 9 (excellent condition). A rating of 4 is considered “poor” condition and the individual element displays signs of advanced section
loss, deterioration, spalling or scour.
2
This data is provided by bridge owners as part of the FHWA data and is required for any bridge eligible for the Highway Bridge Replacement
and Rehabilitation Program. However, for some states this amount is very low and likely not an accurate reflection of current costs.
State Bridge Profile
Washington

2. © 2015 The American Road & Transportation Builders Association (ARTBA). All rights reserved. No part of this document may be reproduced or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of
ARTBA.
Proposed bridge work:
Type of Work Number Cost (millions) Daily Crossings Area (sq. meters)
Bridge replacement 787 $472.5 2,817,527 332,050
Widening & rehabilitation 46 $132.0 391,024 59,483
Rehabilitation 3,405 $53,007.0 57,285,622 5,190,425
Deck rehabilitation/replacement 27 $3.6 112,539 20,094
Other work 1,537 $311.7 2,196,278 483,783
Top 10 Most Traveled Structurally Deficient Bridges in the State:
County
Year
Built
Daily
Crossings
Type of Bridge Location
King 1963 60,221
Urban
freeway/expressway
SR 520 over Lake Washington (Evergreen Point Floating
Bridge)
King 1959 57,671
Urban other
principal arterial
W Emerson Street over 15th Avenue W
King 1989 57,428 Urban Interstate
I-90 over Lake Washington (Lacey V. Murrow Memorial
Bridge)
King 1940 57,428 Urban Interstate
I-90 WB and pedestrian walkway over Lake Washington
(Homer M. Hadley Memorial Bridge)
King 1970 37,549
Urban other
principal arterial
SR 900 over I-90
King 1966 35,000
Urban other
principal arterial
S 212th Street over the Green River
Spokane 1963 34,707 Urban Interstate I-90 over Hangman Creek
Spokane 1963 34,707 Urban Interstate I-90 over Hangman Creek
King 1952 34,500
Urban other
principal arterial
S Boeing Access Road over the Burlington Northern Railroad
King 1945 34,500
Urban other
principal arterial
S Boeing Access Road over the Airport Way Bar Ramp
Sources: All data is from the 2014 National Bridge Inventory, released by the Federal Highway Administration in January 2015.
Note that specific conditions on bridge may have changed as a result of recent work. Cost estimates of bridge work provided as
part of the data and have been adjusted to 2014$ for inflation and estimated project costs. Contract awards data is for state
and local government awards and comes from McGraw Hill. Note that additional bridge investment may be a part of other
contract awards if a smaller bridge project is included with a highway project, and that would not be accounted for in the total
in this profile.