US Bridges

IRR BIA Route 24 over Seama Wash

Good

Cibola County, New Mexico · 0.3KM East of Seama · Structure no. 00000000000M159

Built
1974
51 years old, rebuilt 2010
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
135 ft
4 main spans
Daily traffic
300
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA Route 24 over Seama Wash is a concrete continuous slab carrying IRR BIA Route 24 over Seama Wash in Cibola County, New Mexico. It was built in 1974 and reconstructed in 2010, so it is 51 years old, younger than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 5% of them trucks, projected to reach 351 by 2043. The structure is 135 ft (41.2 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIRR BIA Route 24
CrossesSeama Wash
Location0.3KM East of Seama
RouteFederal Lands Road 24
Coordinates35.03739, -107.51987
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating39.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length135 ft (41.2 m)
Longest span37 ft (11.3 m)
Deck width47 ft (14.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic351 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 IRR BIA Route 24 over Seama Wash built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2010.

What condition is IRR BIA Route 24 over Seama Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does IRR BIA Route 24 over Seama Wash carry?

About 300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA Route 24 over Seama Wash?

The structure is 135 ft (41.2 m) long with a longest span of 37 ft (11.3 m) and a deck 47 ft wide.

Who owns IRR BIA Route 24 over Seama Wash?

It is owned by the Bureau of Indian Affairs.