US Bridges

FM 1093 over Drainage Ditch

Fair

Harris County, Texas · 0.5 MI E of SH 6 · Structure no. 121020125804014

Built
1975
50 years old, rebuilt 1987
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
34,913
2022 count
Owner
State
State Highway Agency

About this bridge

FM 1093 over Drainage Ditch is a concrete culvert carrying FM 1093 over Drainage Ditch in Harris County, Texas. It was built in 1975 and reconstructed in 1987, so it is 50 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 34,913 vehicles a day, roughly 2% of them trucks, projected to reach 58,250 by 2033. The structure is 28 ft (8.5 m) long and 158 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFM 1093
CrossesDrainage Ditch
Location0.5 MI E of SH 6
RouteState Highway 1093
CountyHarris County
StateTexas
Coordinates29.73571, -95.63517
Functional classUrban Other Principal 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
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 length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width158 ft (48.3 m)
Roadway width90 ft (27.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,913 (2022)
Projected traffic58,250 by 2033
Trucks2%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1093 over Drainage Ditch built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1987.

What condition is FM 1093 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 2024.

How much traffic does FM 1093 over Drainage Ditch carry?

About 34,913 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is FM 1093 over Drainage Ditch?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 158 ft wide.

Who owns FM 1093 over Drainage Ditch?

It is owned by the State Highway Agency.