US Bridges

US 77 SB over Copano Creek

Good

Refugio County, Texas · 9.60 MI NE of US 183 · Structure no. 161960037102061

Built
1985
40 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
600 ft
8 main spans
Daily traffic
8,382
2022 count
Owner
State
State Highway Agency

About this bridge

US 77 SB over Copano Creek is a prestressed concrete stringer/multi-beam or girder carrying US 77 SB over Copano Creek in Refugio County, Texas. It was built in 1985, so it is 40 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,382 vehicles a day, roughly 49% of them trucks, projected to reach 11,232 by 2042. The structure is 600 ft (182.9 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 SB
CrossesCopano Creek
Location9.60 MI NE of US 183
RouteU.S. Route 77
StateTexas
Coordinates28.41178, -97.16422
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: 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 spans8
Design loadHS 20
Structure length600 ft (182.9 m)
Longest span75 ft (22.9 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,382 (2022)
Projected traffic11,232 by 2042
Trucks49%
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 SB over Copano Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is US 77 SB over Copano Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does US 77 SB over Copano Creek carry?

About 8,382 vehicles per day (2022 count), of which roughly 49% are trucks.

How long is US 77 SB over Copano Creek?

The structure is 600 ft (182.9 m) long with a longest span of 75 ft (22.9 m) and a deck 40 ft wide.

Who owns US 77 SB over Copano Creek?

It is owned by the State Highway Agency.