US Bridges

US 77 NB over SH 89

Fair

San Patricio County, Texas · US 77 @ SH 89 · Structure no. 162050037104094

Built
2008
17 years old
Condition
Fair
inspected March 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
440 ft
4 main spans
Daily traffic
6,308
2016 count
Owner
State
State Highway Agency

About this bridge

US 77 NB over SH 89 is a prestressed concrete stringer/multi-beam or girder carrying US 77 NB over SH 89 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 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 6,308 vehicles a day, projected to reach 10,370 by 2031. The structure is 440 ft (134.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 NB
CrossesSH 89
LocationUS 77 @ SH 89
RouteU.S. Route 77
StateTexas
Coordinates28.05762, -97.50791
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 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 spans4
Design loadHS 25 or greater
Structure length440 ft (134.1 m)
Longest span120 ft (36.6 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,308 (2016)
Projected traffic10,370 by 2031
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 SH 89 built?

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

What condition is US 77 NB over SH 89 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 2022.

How much traffic does US 77 NB over SH 89 carry?

About 6,308 vehicles per day (2016 count).

How long is US 77 NB over SH 89?

The structure is 440 ft (134.1 m) long with a longest span of 120 ft (36.6 m) and a deck 40 ft wide.

Who owns US 77 NB over SH 89?

It is owned by the State Highway Agency.