US Bridges

Garrett RD over Coh Freshwater Canal

Fair

Harris County, Texas · 1.95 MI W of Sheldon RD · Structure no. 121020AA4486001

Built
1960
65 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
6,198
2022 count
Owner
County
County Highway Agency

About this bridge

Garrett RD over Coh Freshwater Canal is a concrete culvert carrying Garrett RD over Coh Freshwater Canal 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 6,198 vehicles a day, roughly 3% of them trucks, projected to reach 8,677 by 2042. The structure is 25 ft (7.6 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesGarrett RD
CrossesCoh Freshwater Canal
Location1.95 MI W of Sheldon RD
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.88345, -95.16116
Functional classRural Minor Collector

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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable 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 length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width61 ft (18.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,198 (2022)
Projected traffic8,677 by 2042
Trucks3%
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

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 Garrett RD over Coh Freshwater Canal built?

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

What condition is Garrett RD over Coh Freshwater Canal 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 Garrett RD over Coh Freshwater Canal carry?

About 6,198 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Garrett RD over Coh Freshwater Canal?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m) and a deck 61 ft wide.

Who owns Garrett RD over Coh Freshwater Canal?

It is owned by the County Highway Agency.