US Bridges

IH 37 SB over SH 359

Good

San Patricio County, Texas · 1.8 MI SE of FM 3377 · Structure no. 162050007403127

Built
1971
54 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
2 main spans
Daily traffic
11,250
2019 count
Owner
State
State Highway Agency

About this bridge

IH 37 SB over SH 359 is a prestressed concrete stringer/multi-beam or girder carrying IH 37 SB over SH 359 in San Patricio County, Texas. It was built in 1971, so it is 54 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 11,250 vehicles a day, roughly 20% of them trucks, projected to reach 12,030 by 2033. The structure is 300 ft (91.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 37 SB
CrossesSH 359
Location1.8 MI SE of FM 3377
RouteInterstate 37
StateTexas
Coordinates28.11286, -97.81807
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.5 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,250 (2019)
Projected traffic12,030 by 2033
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 37 SB over SH 359 built?

It was built in 1971, making it 54 years old in 2025.

What condition is IH 37 SB over SH 359 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 April 2022.

How much traffic does IH 37 SB over SH 359 carry?

About 11,250 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is IH 37 SB over SH 359?

The structure is 300 ft (91.4 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns IH 37 SB over SH 359?

It is owned by the State Highway Agency.