US Bridges

Second ST over Whitefish River

Fair

Flathead County, Montana · Whitefish-Second ST · Structure no. P00005128+00531

Built
2013
12 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
141 ft
1 main span
Daily traffic
11,777
2023 count
Owner
State
State Highway Agency

About this bridge

Second ST over Whitefish River is a steel stringer/multi-beam or girder carrying Second ST over Whitefish River in Flathead County, Montana. It was built in 2013, so it is 12 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 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 11,777 vehicles a day, roughly 1% of them trucks, projected to reach 12,366 by 2043. The structure is 141 ft (43 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSecond ST
CrossesWhitefish River
LocationWhitefish-Second ST
RouteU.S. Route 93
CountyFlathead County
StateMontana
Coordinates48.41059, -114.34269
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length141 ft (43 m)
Longest span138 ft (42 m)
Deck width49 ft (14.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,777 (2023)
Projected traffic12,366 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Second ST over Whitefish River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Second ST over Whitefish River 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 August 2024.

How much traffic does Second ST over Whitefish River carry?

About 11,777 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Second ST over Whitefish River?

The structure is 141 ft (43 m) long with a longest span of 138 ft (42 m) and a deck 49 ft wide.

Who owns Second ST over Whitefish River?

It is owned by the State Highway Agency.