US Bridges

US 77 NB over Drainage Ditch

Good

Refugio County, Texas · 1.0 MI SW of SH 239 · Structure no. 161960037102084

Built
1986
39 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
20 ft
3 main spans
Daily traffic
7,869
2022 count
Owner
State
State Highway Agency

About this bridge

US 77 NB over Drainage Ditch is a concrete culvert carrying US 77 NB over Drainage Ditch in Refugio County, Texas. It was built in 1986, so it is 39 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 7,869 vehicles a day, roughly 41% of them trucks, projected to reach 10,702 by 2042. The structure is 20 ft (6.1 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 NB
CrossesDrainage Ditch
Location1.0 MI SW of SH 239
RouteU.S. Route 77
StateTexas
Coordinates28.50928, -97.05911
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span6 ft (1.8 m)
Deck width61 ft (18.7 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,869 (2022)
Projected traffic10,702 by 2042
Trucks41%
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 Drainage Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 77 NB over Drainage Ditch 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 May 2024.

How much traffic does US 77 NB over Drainage Ditch carry?

About 7,869 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is US 77 NB over Drainage Ditch?

The structure is 20 ft (6.1 m) long with a longest span of 6 ft (1.8 m) and a deck 61 ft wide.

Who owns US 77 NB over Drainage Ditch?

It is owned by the State Highway Agency.