US Bridges

US 181 SB over FM 2986

Good

San Patricio County, Texas · 2.55 MI N of FM 3239 · Structure no. 162050010104077

Built
2008
17 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
3 main spans
Daily traffic
3,161
2020 count
Owner
State
State Highway Agency

About this bridge

US 181 SB over FM 2986 is a prestressed concrete stringer/multi-beam or girder carrying US 181 SB over FM 2986 in San Patricio County, Texas. It was built in 2008, so it is 17 years old, younger 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 3,161 vehicles a day, roughly 22% of them trucks, projected to reach 5,200 by 2033. The structure is 240 ft (73.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 181 SB
CrossesFM 2986
Location2.55 MI N of FM 3239
RouteU.S. Route 181
StateTexas
Coordinates27.93145, -97.30305
Functional classRural Principal Arterial - Other

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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length240 ft (73.2 m)
Longest span80 ft (24.4 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,161 (2020)
Projected traffic5,200 by 2033
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 181 SB over FM 2986 built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 181 SB over FM 2986 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 US 181 SB over FM 2986 carry?

About 3,161 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is US 181 SB over FM 2986?

The structure is 240 ft (73.2 m) long with a longest span of 80 ft (24.4 m) and a deck 40 ft wide.

Who owns US 181 SB over FM 2986?

It is owned by the State Highway Agency.