US Bridges

US 77 NB over Chiltipin Creek

Fair

San Patricio County, Texas · 0.70 MI N of SH 188 · Structure no. 162050037104055

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
282 ft
5 main spans
Daily traffic
9,398
2024 count
Owner
State
State Highway Agency

About this bridge

US 77 NB over Chiltipin Creek is a prestressed concrete box beam or girders - multiple carrying US 77 NB over Chiltipin Creek in San Patricio County, Texas. It was built in 1979, so it is 46 years old, older 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 9,398 vehicles a day, projected to reach 11,390 by 2031. The structure is 282 ft (86 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 77 NB
CrossesChiltipin Creek
Location0.70 MI N of SH 188
RouteU.S. Route 77
CountySan Patricio County
StateTexas
Coordinates28.04557, -97.52493
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
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 spans5
Design loadHS 20
Structure length282 ft (86 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,398 (2024)
Projected traffic11,390 by 2031
Trucks0%
Lanes on structure2
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 NB over Chiltipin Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is US 77 NB over Chiltipin Creek 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 NB over Chiltipin Creek carry?

About 9,398 vehicles per day (2024 count).

How long is US 77 NB over Chiltipin Creek?

The structure is 282 ft (86 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns US 77 NB over Chiltipin Creek?

It is owned by the State Highway Agency.