US Bridges

IRR BIA Route 1 over Dry Run

Good

Mohave County, Arizona · 29.8KM West of Route 66 · Structure no. 0000H68606B0903

Built
1995
30 years old
Condition
Good
inspected February 2023
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
75
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA Route 1 over Dry Run is a steel culvert carrying IRR BIA Route 1 over Dry Run in Mohave County, Arizona. It was built in 1995, so it is 30 years old, younger than the Arizona average of 47.8 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 75 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2043. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIRR BIA Route 1
CrossesDry Run
Location29.8KM West of Route 66
RouteFederal Lands Road 1
StateArizona
Coordinates35.61825, -113.73058
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic100 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 1 over Dry Run built?

It was built in 1995, making it 30 years old in 2025.

What condition is IRR BIA Route 1 over Dry Run 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 February 2023.

How much traffic does IRR BIA Route 1 over Dry Run carry?

About 75 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is IRR BIA Route 1 over Dry Run?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3 m).

Who owns IRR BIA Route 1 over Dry Run?

It is owned by the Bureau of Indian Affairs.