US Bridges

Lindbergh RD over Swan River 065

Good

Missoula County, Montana · 19M N Seeley Lake · Structure no. L32654000+06001

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Lindbergh RD over Swan River 065 is a prestressed concrete tee beam carrying Lindbergh RD over Swan River 065 in Missoula County, Montana. It was built in 1984, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 97 ft (29.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLindbergh RD
CrossesSwan River 065
Location19M N Seeley Lake
RouteCounty Highway 32654
StateMontana
Coordinates47.4224, -113.67114
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span91 ft (27.7 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Lindbergh RD over Swan River 065 built?

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

What condition is Lindbergh RD over Swan River 065 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Lindbergh RD over Swan River 065 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Lindbergh RD over Swan River 065?

The structure is 97 ft (29.6 m) long with a longest span of 91 ft (27.7 m) and a deck 28 ft wide.

Who owns Lindbergh RD over Swan River 065?

It is owned by the County Highway Agency.