US Bridges

SH 35 SB over US 181 Nbfr & UP RR

Fair

San Patricio County, Texas · 1.3 MI N of FM 3239 · Structure no. 162050010104058

Built
1981
44 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,422 ft
13 main spans
Daily traffic
17,285
2022 count
Owner
State
State Highway Agency

About this bridge

SH 35 SB over US 181 Nbfr & UP RR is a prestressed concrete stringer/multi-beam or girder carrying SH 35 SB over US 181 Nbfr & UP RR in San Patricio County, Texas. It was built in 1981, so it is 44 years old, younger 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 17,285 vehicles a day, roughly 5% of them trucks, projected to reach 24,199 by 2042. The structure is 1,422 ft (433.4 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSH 35 SB
CrossesUS 181 Nbfr & UP RR
Location1.3 MI N of FM 3239
RouteState Highway 35
CountySan Patricio County
StateTexas
Coordinates27.91426, -97.29641
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans13 (+1 approach)
Design loadHS 20
Structure length1,422 ft (433.4 m)
Longest span111 ft (33.8 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,285 (2022)
Projected traffic24,199 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 35 SB over US 181 Nbfr & UP RR built?

It was built in 1981, making it 44 years old in 2025.

What condition is SH 35 SB over US 181 Nbfr & UP RR 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 April 2024.

How much traffic does SH 35 SB over US 181 Nbfr & UP RR carry?

About 17,285 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is SH 35 SB over US 181 Nbfr & UP RR?

The structure is 1,422 ft (433.4 m) long with a longest span of 111 ft (33.8 m) and a deck 40 ft wide.

Who owns SH 35 SB over US 181 Nbfr & UP RR?

It is owned by the State Highway Agency.