US Bridges

W Bellfort Ave over Chimney Rock Ditch

FairPosted for load

Harris County, Texas · 1.0 MI W of S Post Oak RD · Structure no. 121020B06825657

Built
1955
70 years old, rebuilt 1995
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
29,940
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Bellfort Ave over Chimney Rock Ditch is a concrete culvert carrying W Bellfort Ave over Chimney Rock Ditch in Harris County, Texas. It was built in 1955 and reconstructed in 1995, so it is 70 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 29,940 vehicles a day, projected to reach 39,000 by 2030. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesW Bellfort Ave
CrossesChimney Rock Ditch
Location1.0 MI W of S Post Oak RD
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.65941, -95.47653
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length33 ft (10.1 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 traffic29,940 (2010)
Projected traffic39,000 by 2030
Trucks0%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$32,000
NavigationNo navigation control on waterway

Frequently asked questions

When was W Bellfort Ave over Chimney Rock Ditch built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1995.

What condition is W Bellfort Ave over Chimney Rock 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 W Bellfort Ave over Chimney Rock Ditch carry?

About 29,940 vehicles per day (2010 count).

How long is W Bellfort Ave over Chimney Rock Ditch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns W Bellfort Ave over Chimney Rock Ditch?

It is owned by the City or Municipal Highway Agency.