US Bridges

IRR BIA RTE 18 over Hay Creek

Fair

Beltrami County, Minnesota · 9KM Northeast of Redby Mn · Structure no. 00000000000F126

Built
1986
39 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
400
2023 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 18 over Hay Creek is a concrete slab carrying IRR BIA RTE 18 over Hay Creek in Beltrami County, Minnesota. It was built in 1986, so it is 39 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 400 vehicles a day, roughly 20% of them trucks, projected to reach 600 by 2043. The structure is 30 ft (9.1 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIRR BIA RTE 18
CrossesHay Creek
Location9KM Northeast of Redby Mn
RouteFederal Lands Road 18
Coordinates47.875, -94.79944
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic600 by 2043
Trucks20%
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

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR BIA RTE 18 over Hay Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is IRR BIA RTE 18 over Hay 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 2023.

How much traffic does IRR BIA RTE 18 over Hay Creek carry?

About 400 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is IRR BIA RTE 18 over Hay Creek?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.

Who owns IRR BIA RTE 18 over Hay Creek?

It is owned by the Bureau of Indian Affairs.