US Bridges

IH 37 over Blue Wing Creek

Fair

Bexar County, Texas · 0.30 MI S of Loop 122 · Structure no. 150150007308077

Built
1967
58 years old, rebuilt 1975
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
52 ft
6 main spans
Daily traffic
86,973
2023 count
Owner
State
State Highway Agency

About this bridge

IH 37 over Blue Wing Creek is a concrete culvert carrying IH 37 over Blue Wing Creek in Bexar County, Texas. It was built in 1967 and reconstructed in 1975, so it is 58 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 86,973 vehicles a day, roughly 13% of them trucks, projected to reach 121,762 by 2042. The structure is 52 ft (15.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37
CrossesBlue Wing Creek
Location0.30 MI S of Loop 122
RouteInterstate 37
StateTexas
Coordinates29.31201, -98.40386
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,973 (2023)
Projected traffic121,762 by 2042
Trucks13%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 37 over Blue Wing Creek built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1975.

What condition is IH 37 over Blue Wing Creek 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 over Blue Wing Creek carry?

About 86,973 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is IH 37 over Blue Wing Creek?

The structure is 52 ft (15.9 m) long with a longest span of 8 ft (2.4 m).

Who owns IH 37 over Blue Wing Creek?

It is owned by the State Highway Agency.