US Bridges

US 77 SB over Peters Swale

Fair

San Patricio County, Texas · 0.50 MI NE of SH 234 · Structure no. 162050037201020

Built
1997
28 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
220 ft
4 main spans
Daily traffic
8,143
2020 count
Owner
State
State Highway Agency

About this bridge

US 77 SB over Peters Swale is a prestressed concrete box beam or girders - multiple carrying US 77 SB over Peters Swale in San Patricio County, Texas. It was built in 1997, so it is 28 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 5 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 8,143 vehicles a day, roughly 27% of them trucks, projected to reach 27,940 by 2033. The structure is 220 ft (67.1 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 77 SB
CrossesPeters Swale
Location0.50 MI NE of SH 234
RouteU.S. Route 77
CountySan Patricio County
StateTexas
Coordinates27.95565, -97.57734
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span55 ft (16.8 m)
Deck width48 ft (14.6 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,143 (2020)
Projected traffic27,940 by 2033
Trucks27%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 77 SB over Peters Swale built?

It was built in 1997, making it 28 years old in 2025.

What condition is US 77 SB over Peters Swale 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 March 2024.

How much traffic does US 77 SB over Peters Swale carry?

About 8,143 vehicles per day (2020 count), of which roughly 27% are trucks.

How long is US 77 SB over Peters Swale?

The structure is 220 ft (67.1 m) long with a longest span of 55 ft (16.8 m) and a deck 48 ft wide.

Who owns US 77 SB over Peters Swale?

It is owned by the State Highway Agency.