US Bridges

No Data Entered over N Branch Marten Creek

Fair

Sanders County, Montana · Marten Creek · Structure no. 011407000000023

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
1 main span
Daily traffic
20
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over N Branch Marten Creek is a wood or timber stringer/multi-beam or girder carrying No Data Entered over N Branch Marten Creek in Sanders County, Montana. It was built in 1967, so it is 58 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.

It carries about 20 vehicles a day, projected to reach 30 by 2045. The structure is 27 ft (8.1 m) long and 15 ft wide. If it were closed, the detour would be 40.4 mi (65 km).

Location

Open in Google Maps
CarriesNo Data Entered
CrossesN Branch Marten Creek
LocationMarten Creek
RouteFederal Lands Road 151
CountySanders County
StateMontana
Coordinates47.88481, -115.88004
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.1 m)
Longest span25 ft (7.6 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1993)
Projected traffic30 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed40.4 mi (65 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was No Data Entered over N Branch Marten Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is No Data Entered over N Branch Marten 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 July 2023.

How much traffic does No Data Entered over N Branch Marten Creek carry?

About 20 vehicles per day (1993 count).

How long is No Data Entered over N Branch Marten Creek?

The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.6 m) and a deck 15 ft wide.

Who owns No Data Entered over N Branch Marten Creek?

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