US Bridges

Mullan RD E over Nemote Creek 006

Poor

Mineral County, Montana · 2M NW Tarkio · Structure no. L31070013+01001

Built
1931
94 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
3 main spans
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

Mullan RD E over Nemote Creek 006 is a steel stringer/multi-beam or girder carrying Mullan RD E over Nemote Creek 006 in Mineral County, Montana. It was built in 1931, so it is 94 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 75 ft (22.9 m) long and 23 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesMullan RD E
CrossesNemote Creek 006
Location2M NW Tarkio
RouteState Highway 31070
StateMontana
Coordinates47.05349, -114.75832
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length75 ft (22.9 m)
Longest span24 ft (7.3 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Mullan RD E over Nemote Creek 006 built?

It was built in 1931, making it 94 years old in 2025.

What condition is Mullan RD E over Nemote Creek 006 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Mullan RD E over Nemote Creek 006 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Mullan RD E over Nemote Creek 006?

The structure is 75 ft (22.9 m) long with a longest span of 24 ft (7.3 m) and a deck 23 ft wide.

Who owns Mullan RD E over Nemote Creek 006?

It is owned by the State Highway Agency.