US Bridges

Benning DR over Chimney Rock Ditch

FairPosted for load

Harris County, Texas · 0.1 MI S of W Bellfort · Structure no. 121020B07177677

Built
1969
56 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
68 ft
3 main spans
Daily traffic
750
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Benning DR over Chimney Rock Ditch is a steel continuous stringer/multi-beam or girder carrying Benning DR over Chimney Rock Ditch in Harris County, Texas. It was built in 1969, so it is 56 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 750 vehicles a day, projected to reach 2,163 by 2030. The structure is 68 ft (20.7 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBenning DR
CrossesChimney Rock Ditch
Location0.1 MI S of W Bellfort
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.65788, -95.47674
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span22 ft (6.7 m)
Deck width35 ft (10.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2010)
Projected traffic2,163 by 2030
Trucks0%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$45,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Benning DR over Chimney Rock Ditch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Benning DR 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 Benning DR over Chimney Rock Ditch carry?

About 750 vehicles per day (2010 count).

How long is Benning DR over Chimney Rock Ditch?

The structure is 68 ft (20.7 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.

Who owns Benning DR over Chimney Rock Ditch?

It is owned by the City or Municipal Highway Agency.