US Bridges

SH 41 over Burlington Northern RR

Good

Bonner County, Idaho · In Oldtown · Structure no. 000000000014256

Built
2019
6 years old
Condition
Good
inspected May 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
237 ft
3 main spans
Daily traffic
4,700
2023 count
Owner
State
State Highway Agency

About this bridge

SH 41 over Burlington Northern RR is a steel continuous stringer/multi-beam or girder carrying SH 41 over Burlington Northern RR in Bonner County, Idaho. It was built in 2019, so it is 6 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,700 vehicles a day, roughly 14% of them trucks, projected to reach 7,050 by 2042. The structure is 237 ft (72.2 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 41
CrossesBurlington Northern RR
LocationIn Oldtown
RouteState Highway 41
CountyBonner County
StateIdaho
Coordinates48.17894, -117.03961
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length237 ft (72.2 m)
Longest span114 ft (34.7 m)
Deck width63 ft (19.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2023)
Projected traffic7,050 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 41 over Burlington Northern RR built?

It was built in 2019, making it 6 years old in 2025.

What condition is SH 41 over Burlington Northern RR 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 May 2022.

How much traffic does SH 41 over Burlington Northern RR carry?

About 4,700 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SH 41 over Burlington Northern RR?

The structure is 237 ft (72.2 m) long with a longest span of 114 ft (34.7 m) and a deck 63 ft wide.

Who owns SH 41 over Burlington Northern RR?

It is owned by the State Highway Agency.