US Bridges

FM 630 over IH 37

Good

San Patricio County, Texas · 2.6 MI SE of SH 188 · Structure no. 162050007405117

Built
1970
55 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
425 ft
4 main spans
Daily traffic
80
2022 count
Owner
State
State Highway Agency

About this bridge

FM 630 over IH 37 is a prestressed concrete stringer/multi-beam or girder carrying FM 630 over IH 37 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 80 vehicles a day, roughly 34% of them trucks, projected to reach 112 by 2042. The structure is 425 ft (129.5 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 630
CrossesIH 37
Location2.6 MI SE of SH 188
RouteState Highway 630
StateTexas
Coordinates28.02959, -97.73825
Functional classRural Minor Collector

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 2024
Inspection intervalevery 24 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 alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length425 ft (129.5 m)
Longest span95 ft (29 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2022)
Projected traffic112 by 2042
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 FM 630 over IH 37 built?

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

What condition is FM 630 over IH 37 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 2024.

How much traffic does FM 630 over IH 37 carry?

About 80 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is FM 630 over IH 37?

The structure is 425 ft (129.5 m) long with a longest span of 95 ft (29 m) and a deck 36 ft wide.

Who owns FM 630 over IH 37?

It is owned by the State Highway Agency.