US Bridges

FM 528 over Irrigation Canal

Fair

Galveston County, Texas · 3.8 MI SW of FM 518 · Structure no. 120850141401023

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
64 ft
2 main spans
Daily traffic
20,609
2023 count
Owner
State
State Highway Agency

About this bridge

FM 528 over Irrigation Canal is a concrete stringer/multi-beam or girder carrying FM 528 over Irrigation Canal in Galveston County, Texas. It was built in 1993, so it is 32 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 20,609 vehicles a day, roughly 2% of them trucks, projected to reach 28,028 by 2042. The structure is 64 ft (19.5 m) long and 87 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 528
CrossesIrrigation Canal
Location3.8 MI SW of FM 518
RouteState Highway 528
CountyGalveston County
StateTexas
Coordinates29.46661, -95.22574
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span32 ft (9.8 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,609 (2023)
Projected traffic28,028 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 528 over Irrigation Canal built?

It was built in 1993, making it 32 years old in 2025.

What condition is FM 528 over Irrigation 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 2024.

How much traffic does FM 528 over Irrigation Canal carry?

About 20,609 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is FM 528 over Irrigation Canal?

The structure is 64 ft (19.5 m) long with a longest span of 32 ft (9.8 m) and a deck 87 ft wide.

Who owns FM 528 over Irrigation Canal?

It is owned by the State Highway Agency.