US Bridges

FM 529(FREEMAN Rd) over Drainage Ditch

Good

Harris County, Texas · 1.5 MI W of SH 99 · Structure no. 121020100601156

Built
2019
6 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
10,100
2021 count
Owner
State
State Highway Agency

About this bridge

FM 529(FREEMAN Rd) over Drainage Ditch is a concrete culvert carrying FM 529(FREEMAN Rd) over Drainage Ditch in Harris County, Texas. It was built in 2019, so it is 6 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,100 vehicles a day, roughly 17% of them trucks, projected to reach 12,400 by 2041. The structure is 30 ft (9.1 m) long and 106 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesFM 529(FREEMAN Rd)
CrossesDrainage Ditch
Location1.5 MI W of SH 99
RouteState Highway 529
CountyHarris County
StateTexas
Coordinates29.87509, -95.78253
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width106 ft (32.3 m)
Roadway width56 ft (17.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,100 (2021)
Projected traffic12,400 by 2041
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 529(FREEMAN Rd) over Drainage Ditch built?

It was built in 2019, making it 6 years old in 2025.

What condition is FM 529(FREEMAN Rd) over Drainage Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does FM 529(FREEMAN Rd) over Drainage Ditch carry?

About 10,100 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is FM 529(FREEMAN Rd) over Drainage Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 106 ft wide.

Who owns FM 529(FREEMAN Rd) over Drainage Ditch?

It is owned by the State Highway Agency.