US Bridges

US 77 SB over Drainage Ditch

Good

Refugio County, Texas · 1.10 MI SW of SH 239 · Structure no. 161960037102014

Built
1932
93 years old, rebuilt 1986
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
6 main spans
Daily traffic
15,738
2022 count
Owner
State
State Highway Agency

About this bridge

US 77 SB over Drainage Ditch is a concrete culvert carrying US 77 SB over Drainage Ditch in Refugio County, Texas. It was built in 1932 and reconstructed in 1986, so it is 93 years old, older 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 15,738 vehicles a day, roughly 41% of them trucks, projected to reach 21,404 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 SB
CrossesDrainage Ditch
Location1.10 MI SW of SH 239
RouteU.S. Route 77
StateTexas
Coordinates28.50949, -97.05935
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 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
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 spans6
Design loadH 15
Structure length22 ft (6.7 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,738 (2022)
Projected traffic21,404 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 77 SB over Drainage Ditch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1986.

What condition is US 77 SB 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 June 2024.

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

About 15,738 vehicles per day (2022 count), of which roughly 41% are trucks.

How long is US 77 SB over Drainage Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 6 ft (1.8 m).

Who owns US 77 SB over Drainage Ditch?

It is owned by the State Highway Agency.