US Bridges

IH 37 NB over Florida ST

Good

Bexar County, Texas · 0.90 MI N of IH 10 · Structure no. 150150007308031

Built
1967
58 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
182 ft
3 main spans
Daily traffic
134,157
2023 count
Owner
State
State Highway Agency

About this bridge

IH 37 NB over Florida ST is a steel continuous stringer/multi-beam or girder carrying IH 37 NB over Florida ST in Bexar County, Texas. It was built in 1967, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 134,157 vehicles a day, roughly 4% of them trucks, projected to reach 187,820 by 2042. The structure is 182 ft (55.5 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37 NB
CrossesFlorida ST
Location0.90 MI N of IH 10
RouteInterstate 37
StateTexas
Coordinates29.4068, -98.48006
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span70 ft (21.3 m)
Deck width71 ft (21.7 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic134,157 (2023)
Projected traffic187,820 by 2042
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 37 NB over Florida ST built?

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

What condition is IH 37 NB over Florida ST in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does IH 37 NB over Florida ST carry?

About 134,157 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is IH 37 NB over Florida ST?

The structure is 182 ft (55.5 m) long with a longest span of 70 ft (21.3 m) and a deck 71 ft wide.

Who owns IH 37 NB over Florida ST?

It is owned by the State Highway Agency.