US Bridges

IH 37 Ml & Efr over Draw

Good

San Patricio County, Texas · 1.2 MI N of FM 796 · Structure no. 162050007405113

Built
1970
55 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
42 ft
5 main spans
Daily traffic
22,516
2022 count
Owner
State
State Highway Agency

About this bridge

IH 37 Ml & Efr over Draw is a concrete culvert carrying IH 37 Ml & Efr over Draw in San Patricio County, Texas. It was built in 1970, so it is 55 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 22,516 vehicles a day, roughly 22% of them trucks, projected to reach 31,522 by 2042. The structure is 42 ft (12.8 m) long and 240 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37 Ml & Efr
CrossesDraw
Location1.2 MI N of FM 796
RouteInterstate 37
StateTexas
Coordinates27.99098, -97.69124
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 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
Deck geometry9: Superior to present desirable criteria
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 spans5
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span8 ft (2.4 m)
Deck width240 ft (73.2 m)
Roadway width101 ft (30.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,516 (2022)
Projected traffic31,522 by 2042
Trucks22%
Lanes on structure6
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$40,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 37 Ml & Efr over Draw built?

It was built in 1970, making it 55 years old in 2025.

What condition is IH 37 Ml & Efr 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 March 2024.

How much traffic does IH 37 Ml & Efr over Draw carry?

About 22,516 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is IH 37 Ml & Efr over Draw?

The structure is 42 ft (12.8 m) long with a longest span of 8 ft (2.4 m) and a deck 240 ft wide.

Who owns IH 37 Ml & Efr over Draw?

It is owned by the State Highway Agency.