US Bridges

IH 37 over Draw

Good

Atascosa County, Texas · 0.02 MI N of FM 791 · Structure no. 150070007306167

Built
1976
49 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
22,389
2020 count
Owner
State
State Highway Agency

About this bridge

IH 37 over Draw is a concrete culvert carrying IH 37 over Draw 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 22,389 vehicles a day, roughly 31% of them trucks, projected to reach 44,600 by 2033. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37
CrossesDraw
Location0.02 MI N of FM 791
RouteInterstate 37
StateTexas
Coordinates28.75867, -98.29794
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 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 traffic22,389 (2020)
Projected traffic44,600 by 2033
Trucks31%
Lanes on structure5
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 Draw built?

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

What condition is IH 37 over Draw 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 over Draw carry?

About 22,389 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is IH 37 over Draw?

The structure is 23 ft (7 m) long with a longest span of 8 ft (2.4 m).

Who owns IH 37 over Draw?

It is owned by the State Highway Agency.