US Bridges

Katy Hockley RD over Drainage Ditch

Fair

Harris County, Texas · 0.50 MI S of FM 529 · Structure no. 121020AA0200003

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
21 ft
3 main spans
Daily traffic
1,000
2013 count
Owner
County
County Highway Agency

About this bridge

Katy Hockley RD over Drainage Ditch is a concrete culvert carrying Katy Hockley RD over Drainage Ditch in Harris County, Texas. It was built in 1960, so it is 65 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,500 by 2033. The structure is 21 ft (6.4 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesKaty Hockley RD
CrossesDrainage Ditch
Location0.50 MI S of FM 529
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.86751, -95.82383
Functional classRural 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
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 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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2013)
Projected traffic1,500 by 2033
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Katy Hockley RD over Drainage Ditch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Katy Hockley 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 Katy Hockley RD over Drainage Ditch carry?

About 1,000 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Katy Hockley RD over Drainage Ditch?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m) and a deck 29 ft wide.

Who owns Katy Hockley RD over Drainage Ditch?

It is owned by the County Highway Agency.