US Bridges

US 77 SB over Drainage Ditch

Fair

Refugio County, Texas · 9.20 MI SW of SH 239 · Structure no. 161960037102020

Built
1932
93 years old, rebuilt 1955
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
55 ft
10 main spans
Daily traffic
8,382
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 1955, 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 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 8,382 vehicles a day, roughly 49% of them trucks, projected to reach 4,090 by 2042. The structure is 55 ft (16.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesUS 77 SB
CrossesDrainage Ditch
Location9.20 MI SW of SH 239
RouteU.S. Route 77
CountyRefugio County
StateTexas
Coordinates28.42336, -97.15178
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry9: Superior to present desirable 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
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length55 ft (16.9 m)
Longest span5 ft (1.5 m)
Deck width45 ft (13.8 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,382 (2022)
Projected traffic4,090 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 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 1955.

What condition is US 77 SB over Drainage Ditch 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 June 2024.

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

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

How long is US 77 SB over Drainage Ditch?

The structure is 55 ft (16.9 m) long with a longest span of 5 ft (1.5 m) and a deck 45 ft wide.

Who owns US 77 SB over Drainage Ditch?

It is owned by the State Highway Agency.