US Bridges

Spread Creek over North Creek

Good

Lincoln County, Montana · 4.7 Miles UP Road 435 · Structure no. 011404000019413

Built
2013
12 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Spread Creek over North Creek is a steel stringer/multi-beam or girder carrying Spread Creek over North Creek in Lincoln County, Montana. It was built in 2013, so it is 12 years old, younger than the Montana average of 47 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 64 ft (19.6 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesSpread Creek
CrossesNorth Creek
Location4.7 Miles UP Road 435
RouteFederal Lands Road 435
StateMontana
Coordinates48.86745, -115.91468
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHL 93
Structure length64 ft (19.6 m)
Longest span62 ft (18.9 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Spread Creek over North Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Spread Creek over North Creek 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 August 2024.

How much traffic does Spread Creek over North Creek carry?

About 50 vehicles per day (latest count).

How long is Spread Creek over North Creek?

The structure is 64 ft (19.6 m) long with a longest span of 62 ft (18.9 m) and a deck 16 ft wide.

Who owns Spread Creek over North Creek?

It is owned by the U.S. Forest Service.