US Bridges

IH 37 SB On-Ramp over Lipan Creek

Good

Atascosa County, Texas · 0.15 MI S of FM 1099 · Structure no. 150070007306188

Built
1976
49 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
430 ft
5 main spans
Daily traffic
339
2021 count
Owner
State
State Highway Agency

About this bridge

IH 37 SB On-Ramp over Lipan Creek is a prestressed concrete stringer/multi-beam or girder carrying IH 37 SB On-Ramp over Lipan Creek in Atascosa County, Texas. It was built in 1976, so it is 49 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 339 vehicles a day, roughly 3% of them trucks, projected to reach 160 by 2030. The structure is 430 ft (131.1 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37 SB On-Ramp
CrossesLipan Creek
Location0.15 MI S of FM 1099
RouteInterstate 37
StateTexas
Coordinates28.73141, -98.28904
Functional classRural Local

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5 (+2 approach)
Design loadHS 20
Structure length430 ft (131.1 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2021)
Projected traffic160 by 2030
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 SB On-Ramp over Lipan Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is IH 37 SB On-Ramp over Lipan Creek 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 May 2024.

How much traffic does IH 37 SB On-Ramp over Lipan Creek carry?

About 339 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is IH 37 SB On-Ramp over Lipan Creek?

The structure is 430 ft (131.1 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns IH 37 SB On-Ramp over Lipan Creek?

It is owned by the State Highway Agency.