US Bridges

S Recreation RD over Sheep Creek 117

Fair

Lewis and Clark County, Montana · 2M S Wolf Creek · Structure no. L25003005+02001

Built
1933
92 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
64 ft
2 main spans
Daily traffic
484
2023 count
Owner
State
State Highway Agency

About this bridge

S Recreation RD over Sheep Creek 117 is a concrete tee beam carrying S Recreation RD over Sheep Creek 117 in Lewis and Clark County, Montana. It was built in 1933, so it is 92 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 484 vehicles a day, roughly 1% of them trucks, projected to reach 508 by 2043. The structure is 64 ft (19.5 m) long and 25 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesS Recreation RD
CrossesSheep Creek 117
Location2M S Wolf Creek
RouteState Highway 81003
CountyLewis and Clark County
StateMontana
Coordinates46.97746, -112.08145
Functional classRural Major Collector

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.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length64 ft (19.5 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic484 (2023)
Projected traffic508 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Recreation RD over Sheep Creek 117 built?

It was built in 1933, making it 92 years old in 2025.

What condition is S Recreation RD over Sheep Creek 117 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 October 2024.

How much traffic does S Recreation RD over Sheep Creek 117 carry?

About 484 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is S Recreation RD over Sheep Creek 117?

The structure is 64 ft (19.5 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns S Recreation RD over Sheep Creek 117?

It is owned by the State Highway Agency.