US Bridges

Willowbend Blvd over Chimney Rock Ditch

Fair

Harris County, Texas · 0.9 MI E of Hillcroft · Structure no. 121020B69913660

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
13,700
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Willowbend Blvd over Chimney Rock Ditch is a concrete culvert carrying Willowbend Blvd over Chimney Rock Ditch in Harris 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 13,700 vehicles a day, projected to reach 17,810 by 2033. The structure is 33 ft (10.1 m) long and 80 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesWillowbend Blvd
CrossesChimney Rock Ditch
Location0.9 MI E of Hillcroft
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.66654, -95.47661
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
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 spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width80 ft (24.5 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,700 (2013)
Projected traffic17,810 by 2033
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$53,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Willowbend Blvd over Chimney Rock Ditch built?

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

What condition is Willowbend Blvd 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 Willowbend Blvd over Chimney Rock Ditch carry?

About 13,700 vehicles per day (2013 count).

How long is Willowbend Blvd over Chimney Rock Ditch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 80 ft wide.

Who owns Willowbend Blvd over Chimney Rock Ditch?

It is owned by the City or Municipal Highway Agency.