US Bridges

Bu 77 over Drain

Fair

Victoria County, Texas · 0.70 MI N of FM 1315 · Structure no. 132350037005037

Built
1979
46 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
61 ft
5 main spans
Daily traffic
46,939
2024 count
Owner
State
State Highway Agency

About this bridge

Bu 77 over Drain is a concrete culvert carrying Bu 77 over Drain in Victoria County, Texas. It was built in 1979, so it is 46 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 46,939 vehicles a day, roughly 8% of them trucks, projected to reach 56,394 by 2042. The structure is 61 ft (18.6 m) long and 109 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBu 77
CrossesDrain
Location0.70 MI N of FM 1315
RouteState Highway 77
StateTexas
Coordinates28.85709, -96.99696
Functional classUrban Other Principal Arterial

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: 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
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span8 ft (2.4 m)
Deck width109 ft (33.3 m)
Roadway width83 ft (25.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,939 (2024)
Projected traffic56,394 by 2042
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bu 77 over Drain built?

It was built in 1979, making it 46 years old in 2025.

What condition is Bu 77 over Drain 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 February 2024.

How much traffic does Bu 77 over Drain carry?

About 46,939 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Bu 77 over Drain?

The structure is 61 ft (18.6 m) long with a longest span of 8 ft (2.4 m) and a deck 109 ft wide.

Who owns Bu 77 over Drain?

It is owned by the State Highway Agency.