US Bridges

FM 529 over South Mayde Creek

Fair

Harris County, Texas · 2.5 MI E of Waller C/L · Structure no. 121020100601005

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
60 ft
3 main spans
Daily traffic
5,450
2019 count
Owner
State
State Highway Agency

About this bridge

FM 529 over South Mayde Creek is a concrete slab carrying FM 529 over South Mayde Creek in Harris County, Texas. It was built in 1968, so it is 57 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 5,450 vehicles a day, roughly 5% of them trucks, projected to reach 5,550 by 2033. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 529
CrossesSouth Mayde Creek
Location2.5 MI E of Waller C/L
RouteState Highway 529
CountyHarris County
StateTexas
Coordinates29.87486, -95.81571
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.6 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,450 (2019)
Projected traffic5,550 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FM 529 over South Mayde Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is FM 529 over South Mayde Creek 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 September 2024.

How much traffic does FM 529 over South Mayde Creek carry?

About 5,450 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is FM 529 over South Mayde Creek?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns FM 529 over South Mayde Creek?

It is owned by the State Highway Agency.