US Bridges

S Post Oak RD over Drainage Ditch

Fair

Fort Bend County, Texas · 0.45 MI N of FM 2234 · Structure no. 120800B52313009

Built
1986
39 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
26,130
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Post Oak RD over Drainage Ditch is a concrete culvert carrying S Post Oak RD over Drainage Ditch in Fort Bend County, Texas. It was built in 1986, so it is 39 years old, younger 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 26,130 vehicles a day, projected to reach 26,130 by 2030. The structure is 21 ft (6.4 m) long.

Location

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CarriesS Post Oak RD
CrossesDrainage Ditch
Location0.45 MI N of FM 2234
RouteCity Street 0
CountyFort Bend County
StateTexas
Coordinates29.58764, -95.47097
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,130 (2010)
Projected traffic26,130 by 2030
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S Post Oak RD over Drainage Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is S Post Oak RD 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 August 2023.

How much traffic does S Post Oak RD over Drainage Ditch carry?

About 26,130 vehicles per day (2010 count).

How long is S Post Oak RD over Drainage Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns S Post Oak RD over Drainage Ditch?

It is owned by the City or Municipal Highway Agency.