US Bridges

US 77 SB over FM 70

Fair

Nueces County, Texas · 0.50 MI E of Bu 77 · Structure no. 161780010203115

Built
1995
30 years old
Condition
Fair
inspected May 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
3 main spans
Daily traffic
9,146
2020 count
Owner
State
State Highway Agency

About this bridge

US 77 SB over FM 70 is a prestressed concrete stringer/multi-beam or girder carrying US 77 SB over FM 70 in Nueces County, Texas. It was built in 1995, so it is 30 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 9,146 vehicles a day, roughly 26% of them trucks, projected to reach 12,070 by 2033. The structure is 300 ft (91.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 SB
CrossesFM 70
Location0.50 MI E of Bu 77
RouteU.S. Route 77
StateTexas
Coordinates27.59288, -97.78321
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 20
Structure length300 ft (91.4 m)
Longest span100 ft (30.5 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,146 (2020)
Projected traffic12,070 by 2033
Trucks26%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 77 SB over FM 70 built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 77 SB over FM 70 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 May 2022.

How much traffic does US 77 SB over FM 70 carry?

About 9,146 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is US 77 SB over FM 70?

The structure is 300 ft (91.4 m) long with a longest span of 100 ft (30.5 m) and a deck 40 ft wide.

Who owns US 77 SB over FM 70?

It is owned by the State Highway Agency.