US Bridges

CR 103 over Rum River

Good

Mille Lacs County, Minnesota · 0.3 MI W of JCT US 169 · Structure no. 48535

Built
2015
10 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

CR 103 over Rum River is a concrete continuous slab carrying CR 103 over Rum River in Mille Lacs County, Minnesota. It was built in 2015, so it is 10 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 80 vehicles a day, projected to reach 480 by 2040. The structure is 140 ft (42.6 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 103
CrossesRum River
Location0.3 MI W of JCT US 169
RouteCounty Highway 103
Coordinates46.02579, -93.66944
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length140 ft (42.6 m)
Longest span53 ft (16.2 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic480 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 103 over Rum River built?

It was built in 2015, making it 10 years old in 2025.

What condition is CR 103 over Rum 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 September 2024.

How much traffic does CR 103 over Rum River carry?

About 80 vehicles per day (2020 count).

How long is CR 103 over Rum River?

The structure is 140 ft (42.6 m) long with a longest span of 53 ft (16.2 m) and a deck 35 ft wide.

Who owns CR 103 over Rum River?

It is owned by the County Highway Agency.