US Bridges

IRR BIA RTE 127 over Mill Pocket-Camas Canal

Fair

Sanders County, Montana · 6.3KM NW of Niarada · Structure no. 00000000000P844

Built
2004
21 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
10
2021 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

IRR BIA RTE 127 over Mill Pocket-Camas Canal is a steel stringer/multi-beam or girder carrying IRR BIA RTE 127 over Mill Pocket-Camas Canal in Sanders County, Montana. It was built in 2004, so it is 21 years old, younger than the Montana average of 47 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 10 vehicles a day, roughly 15% of them trucks, projected to reach 20 by 2041. The structure is 37 ft (11.3 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIRR BIA RTE 127
CrossesMill Pocket-Camas Canal
Location6.3KM NW of Niarada
RouteFederal Lands Road 127
StateMontana
Coordinates47.8031, -114.66692
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94 US tons
Inventory rating72 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.3 m)
Longest span36 ft (11 m)
Deck width16 ft (5 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2021)
Projected traffic20 by 2041
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 127 over Mill Pocket-Camas Canal built?

It was built in 2004, making it 21 years old in 2025.

What condition is IRR BIA RTE 127 over Mill Pocket-Camas 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 June 2023.

How much traffic does IRR BIA RTE 127 over Mill Pocket-Camas Canal carry?

About 10 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is IRR BIA RTE 127 over Mill Pocket-Camas Canal?

The structure is 37 ft (11.3 m) long with a longest span of 36 ft (11 m) and a deck 16 ft wide.

Who owns IRR BIA RTE 127 over Mill Pocket-Camas Canal?

It is owned by the Bureau of Indian Affairs.