US Bridges

Gold Coin Road over Flint Creek 017

Fair

Granite County, Montana · 13M S Drummond · Structure no. L20101000+04001

Built
1984
41 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Gold Coin Road over Flint Creek 017 is a wood or timber stringer/multi-beam or girder carrying Gold Coin Road over Flint Creek 017 in Granite County, Montana. It was built in 1984, so it is 41 years old, younger 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 47 ft (14.3 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesGold Coin Road
CrossesFlint Creek 017
Location13M S Drummond
RouteCounty Highway 20085
CountyGranite County
StateMontana
Coordinates46.48769, -113.23667
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span42 ft (12.8 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.1 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 closed123.7 mi (199 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 Gold Coin Road over Flint Creek 017 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Gold Coin Road over Flint Creek 017 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 2024.

How much traffic does Gold Coin Road over Flint Creek 017 carry?

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

How long is Gold Coin Road over Flint Creek 017?

The structure is 47 ft (14.3 m) long with a longest span of 42 ft (12.8 m) and a deck 18 ft wide.

Who owns Gold Coin Road over Flint Creek 017?

It is owned by the County Highway Agency.