US Bridges

W South ST over Drainage Ditch

Fair

Brazoria County, Texas · 0.07 MI W of S Johnson ST · Structure no. 120200D01180003

Built
1970
55 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
5,930
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

W South ST over Drainage Ditch is a concrete culvert carrying W South ST over Drainage Ditch in Brazoria County, Texas. It was built in 1970, so it is 55 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 5,930 vehicles a day, projected to reach 8,000 by 2031. The structure is 40 ft (12.2 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesW South ST
CrossesDrainage Ditch
Location0.07 MI W of S Johnson ST
RouteCity Street 0
CountyBrazoria County
StateTexas
Coordinates29.40901, -95.25195
Functional classUrban Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
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 spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span9 ft (2.7 m)
Deck width52 ft (15.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,930 (2011)
Projected traffic8,000 by 2031
Trucks0%
Lanes on structure4
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4,000
NavigationNo navigation control on waterway

Frequently asked questions

When was W South ST over Drainage Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is W South ST 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 November 2023.

How much traffic does W South ST over Drainage Ditch carry?

About 5,930 vehicles per day (2011 count).

How long is W South ST over Drainage Ditch?

The structure is 40 ft (12.2 m) long with a longest span of 9 ft (2.7 m) and a deck 52 ft wide.

Who owns W South ST over Drainage Ditch?

It is owned by the Town or Township Highway Agency.