US Bridges

FM 525 over Greens Bayou

Fair

Harris County, Texas · 3.5 MI E of IH 45 · Structure no. 121020100501005

Built
1992
33 years old
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
16,797
2023 count
Owner
State
State Highway Agency

About this bridge

FM 525 over Greens Bayou is a prestressed concrete box beam or girders - multiple carrying FM 525 over Greens Bayou in Harris County, Texas. It was built in 1992, so it is 33 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.

It carries about 16,797 vehicles a day, roughly 11% of them trucks, projected to reach 23,516 by 2042. The structure is 210 ft (64 m) long and 94 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 525
CrossesGreens Bayou
Location3.5 MI E of IH 45
RouteState Highway 525
CountyHarris County
StateTexas
Coordinates29.93036, -95.34708
Functional classUrban Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span70 ft (21.3 m)
Deck width94 ft (28.8 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,797 (2023)
Projected traffic23,516 by 2042
Trucks11%
Lanes on structure7
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 525 over Greens Bayou built?

It was built in 1992, making it 33 years old in 2025.

What condition is FM 525 over Greens Bayou 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 2024.

How much traffic does FM 525 over Greens Bayou carry?

About 16,797 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FM 525 over Greens Bayou?

The structure is 210 ft (64 m) long with a longest span of 70 ft (21.3 m) and a deck 94 ft wide.

Who owns FM 525 over Greens Bayou?

It is owned by the State Highway Agency.