US Bridges

IH 37 over Draw

Fair

Atascosa County, Texas · 3.00 MI S of SH 97 · Structure no. 150070007310253

Built
1980
45 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
20,650
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 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 20,650 vehicles a day, roughly 31% of them trucks, projected to reach 31,770 by 2033. The structure is 46 ft (14 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37
CrossesDraw
Location3.00 MI S of SH 97
RouteInterstate 37
StateTexas
Coordinates28.94983, -98.43734
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 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 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 spans3
Design loadHS 20
Structure length46 ft (14 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,650 (2020)
Projected traffic31,770 by 2033
Trucks31%
Lanes on structure4
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 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 over Draw built?

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

What condition is IH 37 over Draw 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 over Draw carry?

About 20,650 vehicles per day (2020 count), of which roughly 31% are trucks.

How long is IH 37 over Draw?

The structure is 46 ft (14 m) long with a longest span of 10 ft (3 m).

Who owns IH 37 over Draw?

It is owned by the State Highway Agency.