US Bridges

Shady LN over Spring Creek

Fair

Flathead County, Montana · 2M NE Kalispell · Structure no. S00317004+04381

Built
1984
41 years old, rebuilt 2014
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
4,918
2023 count
Owner
State
State Highway Agency

About this bridge

Shady LN over Spring Creek is a prestressed concrete tee beam carrying Shady LN over Spring Creek in Flathead County, Montana. It was built in 1984 and reconstructed in 2014, 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 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 4,918 vehicles a day, roughly 3% of them trucks, projected to reach 5,238 by 2043. The structure is 85 ft (25.9 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesShady LN
CrossesSpring Creek
Location2M NE Kalispell
RouteState Highway 6734
CountyFlathead County
StateMontana
Coordinates48.21659, -114.26986
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionNovember 2023
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 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 rating49.1 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length85 ft (25.9 m)
Longest span84 ft (25.6 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,918 (2023)
Projected traffic5,238 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$156,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Shady LN over Spring Creek built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 2014.

What condition is Shady LN over Spring 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 November 2023.

How much traffic does Shady LN over Spring Creek carry?

About 4,918 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Shady LN over Spring Creek?

The structure is 85 ft (25.9 m) long with a longest span of 84 ft (25.6 m) and a deck 36 ft wide.

Who owns Shady LN over Spring Creek?

It is owned by the State Highway Agency.