Of the 3,127 bridges in Wyoming, 422 (13%) are structurally deficient and 284 (9%) are functionally obsolete. The state estimates it would cost $270.6 million to repair 1,217 bridges. The top 10 most traveled structurally deficient bridges carry between 13,092 and 30,774 vehicles daily, spanning rivers and railroads.

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 3,127 bridges in the state, 422 bridges, or 13% 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 284 bridges, or 9% 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 $259.79 million over the past
five years, 16 percent of highway and bridge contract awards, compared to a national average of
29 percent.
 Since 2004, 207 new bridges have been constructed in the state and 29 bridges have undergone
major reconstruction.
 The state estimates that it would cost approximately $270.6 million to fix a total of 1,217
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 765 340,970 3,070,914 73 40,514 256,801
Other principal arterial 335 169,301 800,926 32 21,403 121,580
Minor arterial 179 68,830 257,526 12 5,766 20,846
Major collector 319 121,802 265,143 29 12,882 34,835
Minor collector 214 69,926 199,587 23 9,003 17,039
Local 937 171,066 227,542 182 36,534 44,489
Urban Bridges
Interstate 160 137,909 1,128,381 23 26,295 139,503
Other freeway 6 3,241 79,541 0 0 0
Principal arterial 78 92,296 750,693 15 25,783 175,186
Minor arterial 41 36,600 219,431 13 11,687 93,049
Collector 48 28,211 145,179 9 3,611 23,530
Rural 45 13,651 49,632 11 2,756 4,750
Total 3,127 1,253,803 7,194,495 422 196,233 931,608
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
Wyoming

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 183 $131.7 181,829 58,659
Widening & rehabilitation 15 $3.5 16,154 5,987
Rehabilitation 51 $4.6 159,528 29,580
Deck rehabilitation/replacement 31 $6.6 127,504 18,106
Other work 937 $124.2 1,190,627 272,934
Top 10 Most Traveled Structurally Deficient Bridges in the State:
County
Year
Built
Daily
Crossings
Type of Bridge Location
Teton 1969 30,774 Rural arterial US-26 over Flat Creek
Campbell 1975 20,335
Urban other
principal arterial
WY-59 over Donkey Creek
Sheridan 1980 20,102
Urban other
principal arterial
US-14 over Little Goose Creek
Sweetwater 1991 18,087
Urban other
principal arterial
US-30 over Bitter Creek
Laramie 1977 17,610
Urban other
principal arterial
WY-212 over Union Pacific and BN Railroads
Fremont 1978 16,838
Urban other
principal arterial
US-287 over the Middle Popo Agie River
Sweetwater 1977 16,581
Urban minor
arterial
WY-376 over Bitter Creek
Sweetwater 1977 16,581
Urban minor
arterial
WY-376 over the Union Pacific Railroad overpass
Sweetwater 1981 15,073
Urban other
principal arterial
US-30 over Bitter Creek
Natrona 1977 13,092
Urban other
principal arterial
US-20 over Casper Creek
Sources: All data is from the 2014 National Bridge Inventory, released by the Federal Highway Administration in January 2015.
Note that specific conditions on bridge may have changed as a result of recent work. Cost estimates of bridge work provided as
part of the data and have been adjusted to 2014$ 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.