US Bridges

CR 529 (harriman) over Drainage Ditch

FairPosted for load

Brazoria County, Texas · 1.25 MI S of CR 541 · Structure no. 120200AA0707004

Built
2007
18 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
32 ft
2 main spans
Daily traffic
1,000
2011 count
Owner
County
County Highway Agency

About this bridge

CR 529 (harriman) over Drainage Ditch is a wood or timber stringer/multi-beam or girder carrying CR 529 (harriman) over Drainage Ditch in Brazoria County, Texas. It was built in 2007, so it is 18 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 1,000 vehicles a day, projected to reach 1,500 by 2031. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCR 529 (harriman)
CrossesDrainage Ditch
Location1.25 MI S of CR 541
RouteCounty Highway 529
CountyBrazoria County
StateTexas
Coordinates29.45601, -95.26938
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour evaluation has not been made
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 rating48 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2011)
Projected traffic1,500 by 2031
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 529 (harriman) over Drainage Ditch built?

It was built in 2007, making it 18 years old in 2025.

What condition is CR 529 (harriman) 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 November 2023.

How much traffic does CR 529 (harriman) over Drainage Ditch carry?

About 1,000 vehicles per day (2011 count).

How long is CR 529 (harriman) over Drainage Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 30 ft wide.

Who owns CR 529 (harriman) over Drainage Ditch?

It is owned by the County Highway Agency.