US Bridges

FM 2556 over Arroyo Colorado

Fair

Cameron County, Texas · 2.90 MI N of US 281 · Structure no. 210310252902001

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
110 ft
4 main spans
Daily traffic
2,008
2020 count
Owner
State
State Highway Agency

About this bridge

FM 2556 over Arroyo Colorado is a concrete continuous slab carrying FM 2556 over Arroyo Colorado in Cameron County, Texas. It was built in 1966, so it is 59 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 2,008 vehicles a day, roughly 7% of them trucks, projected to reach 2,540 by 2033. The structure is 110 ft (33.5 m) long and 37 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesFM 2556
CrossesArroyo Colorado
Location2.90 MI N of US 281
RouteState Highway 2556
CountyCameron County
StateTexas
Coordinates26.12001, -97.85118
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length110 ft (33.5 m)
Longest span30 ft (9.1 m)
Deck width37 ft (11.3 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,008 (2020)
Projected traffic2,540 by 2033
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 2556 over Arroyo Colorado built?

It was built in 1966, making it 59 years old in 2025.

What condition is FM 2556 over Arroyo Colorado 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 March 2023.

How much traffic does FM 2556 over Arroyo Colorado carry?

About 2,008 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is FM 2556 over Arroyo Colorado?

The structure is 110 ft (33.5 m) long with a longest span of 30 ft (9.1 m) and a deck 37 ft wide.

Who owns FM 2556 over Arroyo Colorado?

It is owned by the State Highway Agency.