US Bridges

US 89 over Montpelier Ck;upper Nrws

Good

Bear Lake County, Idaho · 4.3 E Montpelier · Structure no. 000000000016709

Built
2008
17 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 89 over Montpelier Ck;upper Nrws is a prestressed concrete stringer/multi-beam or girder carrying US 89 over Montpelier Ck;upper Nrws in Bear Lake County, Idaho. It was built in 2008, so it is 17 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 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 1,300 vehicles a day, roughly 7% of them trucks, projected to reach 1,950 by 2042. The structure is 69 ft (21 m) long and 39 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesUS 89
CrossesMontpelier Ck;upper Nrws
Location4.3 E Montpelier
RouteU.S. Route 89
StateIdaho
Coordinates42.33956, -111.21211
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length69 ft (21 m)
Longest span69 ft (21 m)
Deck width39 ft (12 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,950 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 89 over Montpelier Ck;upper Nrws built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 89 over Montpelier Ck;upper Nrws 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 November 2023.

How much traffic does US 89 over Montpelier Ck;upper Nrws carry?

About 1,300 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 89 over Montpelier Ck;upper Nrws?

The structure is 69 ft (21 m) long with a longest span of 69 ft (21 m) and a deck 39 ft wide.

Who owns US 89 over Montpelier Ck;upper Nrws?

It is owned by the State Highway Agency.