US Bridges

Going-To-The-Sun R over Snyder Creek

Fair

Flathead County, Montana · 10.8 Miles Northeast of U · Structure no. 1430017P0000000

Built
1935
90 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete
Length
25 ft
1 main span
Daily traffic
1,230
2017 count
Owner
Federal
National Park Service

About this bridge

Going-To-The-Sun R over Snyder Creek is a concrete frame carrying Going-To-The-Sun R over Snyder Creek in Flathead County, Montana. It was built in 1935, so it is 90 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 1,230 vehicles a day, roughly 10% of them trucks, projected to reach 1,476 by 2037. The structure is 25 ft (7.5 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGoing-To-The-Sun R
CrossesSnyder Creek
Location10.8 Miles Northeast of U
RouteFederal Lands Road 15400
StateMontana
Coordinates48.61619, -113.87697
Functional classRural Minor 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.5 m)
Longest span21 ft (6.4 m)
Deck width37 ft (11.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,230 (2017)
Projected traffic1,476 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$32,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Going-To-The-Sun R over Snyder Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Going-To-The-Sun R over Snyder 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 September 2023.

How much traffic does Going-To-The-Sun R over Snyder Creek carry?

About 1,230 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Going-To-The-Sun R over Snyder Creek?

The structure is 25 ft (7.5 m) long with a longest span of 21 ft (6.4 m) and a deck 37 ft wide.

Who owns Going-To-The-Sun R over Snyder Creek?

It is owned by the National Park Service.