US Bridges

Spanish Creek Road over South Fork Spanish Creek

Good

Madison County, Montana · Spanish Creek · Structure no. 011106000000103

Built
1967
58 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
61 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Spanish Creek Road over South Fork Spanish Creek is a wood or timber stringer/multi-beam or girder carrying Spanish Creek Road over South Fork Spanish Creek in Madison 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 good condition with a lowest component rating of 7 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 61 ft (18.6 m) long and 25 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesSpanish Creek Road
CrossesSouth Fork Spanish Creek
LocationSpanish Creek
RouteFederal Lands Road 982
StateMontana
Coordinates45.44955, -111.13946
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 Spanish Creek Road over South Fork Spanish Creek built?

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

What condition is Spanish Creek Road over South Fork Spanish 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 September 2024.

How much traffic does Spanish Creek Road over South Fork Spanish Creek carry?

About 50 vehicles per day (latest count).

How long is Spanish Creek Road over South Fork Spanish Creek?

The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Spanish Creek Road over South Fork Spanish Creek?

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