US Bridges

S 1 over Fred Burr Creek

Fair

Granite County, Montana · 2M S Philipsburg · Structure no. P00019035+03141

Built
1931
94 years old, rebuilt 1956
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
63 ft
2 main spans
Daily traffic
1,695
2023 count
Owner
State
State Highway Agency

About this bridge

S 1 over Fred Burr Creek is a concrete tee beam carrying S 1 over Fred Burr Creek in Granite County, Montana. It was built in 1931 and reconstructed in 1956, so it is 94 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.

It carries about 1,695 vehicles a day, roughly 3% of them trucks, projected to reach 1,856 by 2043. The structure is 63 ft (19.2 m) long and 38 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesS 1
CrossesFred Burr Creek
Location2M S Philipsburg
RouteState Highway 1
StateMontana
Coordinates46.29585, -113.31604
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span31 ft (9.4 m)
Deck width38 ft (11.6 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,695 (2023)
Projected traffic1,856 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was S 1 over Fred Burr Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1956.

What condition is S 1 over Fred Burr 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 2024.

How much traffic does S 1 over Fred Burr Creek carry?

About 1,695 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S 1 over Fred Burr Creek?

The structure is 63 ft (19.2 m) long with a longest span of 31 ft (9.4 m) and a deck 38 ft wide.

Who owns S 1 over Fred Burr Creek?

It is owned by the State Highway Agency.