US Bridges

1st Ave S over Drainage Ditch

Fair

Galveston County, Texas · 0.5 MI E of SH 146 · Structure no. 120850C00201001

Built
1980
45 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
790
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

1st Ave S over Drainage Ditch is a concrete culvert carrying 1st Ave S over Drainage Ditch in Galveston County, Texas. It was built in 1980, so it is 45 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 790 vehicles a day, roughly 15% of them trucks, projected to reach 869 by 2031. The structure is 24 ft (7.3 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries1st Ave S
CrossesDrainage Ditch
Location0.5 MI E of SH 146
RouteCity Street 0
CountyGalveston County
StateTexas
Coordinates29.38265, -94.94268
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width32 ft (9.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2011)
Projected traffic869 by 2031
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1st Ave S over Drainage Ditch built?

It was built in 1980, making it 45 years old in 2025.

What condition is 1st Ave S 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 October 2023.

How much traffic does 1st Ave S over Drainage Ditch carry?

About 790 vehicles per day (2011 count), of which roughly 15% are trucks.

How long is 1st Ave S over Drainage Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m) and a deck 32 ft wide.

Who owns 1st Ave S over Drainage Ditch?

It is owned by the Town or Township Highway Agency.