US Bridges

Nickwall RD over Nickwall Creek 012

FairPosted for load

McCone County, Montana · 20M NE Vida · Structure no. L28507005+07001

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Nickwall RD over Nickwall Creek 012 is a steel stringer/multi-beam or girder carrying Nickwall RD over Nickwall Creek 012 in McCone County, Montana. It was built in 1970, so it is 55 years old, older 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 29 ft (8.8 m) long and 20 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesNickwall RD
CrossesNickwall Creek 012
Location20M NE Vida
RouteCounty Highway 28401
StateMontana
Coordinates48.04211, -105.39522
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating31 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6.2 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 closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Nickwall RD over Nickwall Creek 012 built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nickwall RD over Nickwall Creek 012 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 August 2024.

How much traffic does Nickwall RD over Nickwall Creek 012 carry?

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

How long is Nickwall RD over Nickwall Creek 012?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 20 ft wide.

Who owns Nickwall RD over Nickwall Creek 012?

It is owned by the County Highway Agency.