State Bridge Profile Missouri 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 24,385 bridges in the state, 3,310 bridges, or 14% 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 3,145 bridges, or 13% 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 $1.49 billion over the past five
years, 31 percent of highway and bridge contract awards, compared to a national average of 29
percent.
 Since 2004, 3,223 new bridges have been constructed in the state and 755 bridges have
undergone major reconstruction.
 The state estimates that it would cost approximately $4.2 billion to fix a total of 5,104 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 463 484,818 5,318,939 20 29,522 202,603
Other principal arterial 1,183 1,085,705 6,386,097 35 39,220 136,712
Minor arterial 1,138 634,177 2,737,164 88 52,347 162,970
Major collector 4,004 1,365,010 3,529,581 672 266,835 463,356
Minor collector 1,033 219,674 343,968 144 36,388 41,292
Local 12,010 1,610,854 1,126,842 1,991 180,110 108,181
Urban Bridges
Interstate 899 1,875,220 34,164,715 44 173,658 2,077,524
Other freeway 1,077 1,489,865 18,032,161 45 79,916 674,798
Principal arterial 99 140,692 1,520,199 5 5,896 96,646
Minor arterial 717 678,377 5,952,307 52 58,898 396,640
Collector 655 372,569 2,636,211 61 31,194 228,576
Rural 1,107 331,445 1,889,309 153 35,109 262,454
Total 24,385 10,288,406 83,637,493 3,310 989,094 4,851,752
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
Missouri

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 3,259 $2,633.8 3,485,714 785,631
Widening & rehabilitation 1 $0.0 5,396 1,810
Rehabilitation 1,811 $1,543.1 8,171,692 868,802
Deck rehabilitation/replacement 0 $0.0 0 0
Other work 33 $3.5 6,693 8,168
Top 10 Most Traveled Structurally Deficient Bridges in the State:
County
Year
Built
Daily
Crossings
Type of Bridge Location
St. Louis 1964 200,596 Urban Interstate I-270 E over Conway Road
St. Louis 1968 120,770 Urban Interstate I-170 E over River Des Peres
Platte 1957 89,314 Urban Interstate I-29S over Route AA
St. Louis 1931 86,541 Urban Interstate I-270E over Watkins Creek
St. Louis 1958 75,994 Urban Interstate I-70W over the Missouri River and Main Street
Clay 1972 75,526 Urban Interstate I-435 S over the Missouri River
Clay 1967 75,150 Urban Interstate I-435 S over a drain ditch
St. Louis 1960 71,361 Urban Interstate I-270 E over Route N
St. Louis 1960 70,205 Urban Interstate I-270 W over Route N
Boone 1957 69,758 Urban Interstate I-70 E over Loop 70
Sources: All data is from the 2014 National Bridge Inventory, released by the Federal Highway Administration in January 2015.
Note that specific conditions on bridge may have changed as a result of recent work. Cost estimates of bridge work provided as
part of the data and have been adjusted to 2014$ 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.