US Bridges

IH 37 NB to 410 WB over IH 37

Fair

Bexar County, Texas · IH 37 at IH 410 · Structure no. 150150007308200

Built
1969
56 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,003 ft
14 main spans
Daily traffic
5,715
2016 count
Owner
State
State Highway Agency

About this bridge

IH 37 NB to 410 WB over IH 37 is a steel continuous stringer/multi-beam or girder carrying IH 37 NB to 410 WB over IH 37 in Bexar County, Texas. It was built in 1969, so it is 56 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,715 vehicles a day, projected to reach 8,000 by 2036. The structure is 1,003 ft (305.7 m) long and 26 ft wide.

CarriesIH 37 NB to 410 WB
CrossesIH 37
LocationIH 37 at IH 410
RouteInterstate 37
StateTexas
Coordinates29.32926, -98.41567
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans14 (+1 approach)
Design loadHS 20
Structure length1,003 ft (305.7 m)
Longest span97 ft (29.6 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,715 (2016)
Projected traffic8,000 by 2036
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesFourth level (interchange)
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 37 NB to 410 WB over IH 37 built?

It was built in 1969, making it 56 years old in 2025.

What condition is IH 37 NB to 410 WB over IH 37 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does IH 37 NB to 410 WB over IH 37 carry?

About 5,715 vehicles per day (2016 count).

How long is IH 37 NB to 410 WB over IH 37?

The structure is 1,003 ft (305.7 m) long with a longest span of 97 ft (29.6 m) and a deck 26 ft wide.

Who owns IH 37 NB to 410 WB over IH 37?

It is owned by the State Highway Agency.