US Bridges

Geer RD over E Fk Porcupine Creek 002

FairPosted for load

Valley County, Montana · 20M N Nashua · Structure no. L53299008+03001

Built
1960
65 years old, rebuilt 2007
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
56 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Geer RD over E Fk Porcupine Creek 002 is a steel stringer/multi-beam or girder carrying Geer RD over E Fk Porcupine Creek 002 in Valley County, Montana. It was built in 1960 and reconstructed in 2007, so it is 65 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 5 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 56 ft (17.1 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGeer RD
CrossesE Fk Porcupine Creek 002
Location20M N Nashua
RouteCounty Highway 53046
StateMontana
Coordinates48.36333, -106.38464
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating93.7 US tons
Inventory rating56.1 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length56 ft (17.1 m)
Longest span33 ft (10.1 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.9 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$80,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Geer RD over E Fk Porcupine Creek 002 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2007.

What condition is Geer RD over E Fk Porcupine Creek 002 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 November 2024.

How much traffic does Geer RD over E Fk Porcupine Creek 002 carry?

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

How long is Geer RD over E Fk Porcupine Creek 002?

The structure is 56 ft (17.1 m) long with a longest span of 33 ft (10.1 m) and a deck 19 ft wide.

Who owns Geer RD over E Fk Porcupine Creek 002?

It is owned by the County Highway Agency.