US Bridges

IH 37 NB over UPRR & Atascosa River

Fair

Atascosa County, Texas · 2.20 MI S of SH 97 · Structure no. 150070007310251

Built
1980
45 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
970 ft
15 main spans
Daily traffic
12,408
2019 count
Owner
State
State Highway Agency

About this bridge

IH 37 NB over UPRR & Atascosa River is a prestressed concrete stringer/multi-beam or girder carrying IH 37 NB over UPRR & Atascosa River in Atascosa County, Texas. It was built in 1980, so it is 45 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 12,408 vehicles a day, roughly 31% of them trucks, projected to reach 15,880 by 2033. The structure is 970 ft (295.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 37 NB
CrossesUPRR & Atascosa River
Location2.20 MI S of SH 97
RouteInterstate 37
CountyAtascosa County
StateTexas
Coordinates28.96205, -98.43708
Functional classRural 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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20
Structure length970 ft (295.7 m)
Longest span70 ft (21.3 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,408 (2019)
Projected traffic15,880 by 2033
Trucks31%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 37 NB over UPRR & Atascosa River built?

It was built in 1980, making it 45 years old in 2025.

What condition is IH 37 NB over UPRR & Atascosa River 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 May 2024.

How much traffic does IH 37 NB over UPRR & Atascosa River carry?

About 12,408 vehicles per day (2019 count), of which roughly 31% are trucks.

How long is IH 37 NB over UPRR & Atascosa River?

The structure is 970 ft (295.7 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.

Who owns IH 37 NB over UPRR & Atascosa River?

It is owned by the State Highway Agency.