US Bridges

Paul Gulch RD over Sep I 90 002

Fair

Jefferson County, Montana · Whitehall · Structure no. L22120000+01601

Built
1966
59 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
275 ft
4 main spans
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

Paul Gulch RD over Sep I 90 002 is a prestressed concrete stringer/multi-beam or girder carrying Paul Gulch RD over Sep I 90 002 in Jefferson County, Montana. It was built in 1966, so it is 59 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 275 ft (83.8 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPaul Gulch RD
CrossesSep I 90 002
LocationWhitehall
RouteCounty Highway 22120
StateMontana
Coordinates45.87648, -112.08766
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.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length275 ft (83.8 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 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
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Paul Gulch RD over Sep I 90 002 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Paul Gulch RD over Sep I 90 002 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 December 2023.

How much traffic does Paul Gulch RD over Sep I 90 002 carry?

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

How long is Paul Gulch RD over Sep I 90 002?

The structure is 275 ft (83.8 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns Paul Gulch RD over Sep I 90 002?

It is owned by the State Highway Agency.