US Bridges

CR 129 over Lost River

Good

Red Lake County, Minnesota · 0.1 MI N of JCT CR 130 · Structure no. 63508

Built
1993
32 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
97 ft
3 main spans
Daily traffic
45
2014 count
Owner
County
County Highway Agency

About this bridge

CR 129 over Lost River is a prestressed concrete tee beam carrying CR 129 over Lost River in Red Lake County, Minnesota. It was built in 1993, so it is 32 years old, younger than the Minnesota average of 38.5 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 45 vehicles a day, projected to reach 45 by 2039. The structure is 97 ft (29.6 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCR 129
CrossesLost River
Location0.1 MI N of JCT CR 130
RouteCounty Highway 129
Coordinates47.85051, -95.96648
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.9 US tons
Inventory rating49.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length97 ft (29.6 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2014)
Projected traffic45 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CR 129 over Lost River built?

It was built in 1993, making it 32 years old in 2025.

What condition is CR 129 over Lost River 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 October 2023.

How much traffic does CR 129 over Lost River carry?

About 45 vehicles per day (2014 count).

How long is CR 129 over Lost River?

The structure is 97 ft (29.6 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns CR 129 over Lost River?

It is owned by the County Highway Agency.