US Bridges

Csah 61 over Midway River

Fair

Carlton County, Minnesota · 0.3 MI W of JCT Csah 1 · Structure no. 09523

Built
2000
25 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
4,973
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 61 over Midway River is a prestressed concrete stringer/multi-beam or girder carrying Csah 61 over Midway River in Carlton County, Minnesota. It was built in 2000, so it is 25 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,973 vehicles a day, roughly 8% of them trucks, projected to reach 4,550 by 2042. The structure is 115 ft (35 m) long and 84 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCsah 61
CrossesMidway River
Location0.3 MI W of JCT Csah 1
RouteCounty Highway 61
CountyCarlton County
StateMinnesota
Coordinates46.70698, -92.36885
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.1 US tons
Inventory rating21.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length115 ft (35 m)
Longest span112 ft (34.1 m)
Deck width84 ft (25.6 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,973 (2022)
Projected traffic4,550 by 2042
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 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 Csah 61 over Midway River built?

It was built in 2000, making it 25 years old in 2025.

What condition is Csah 61 over Midway River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Csah 61 over Midway River carry?

About 4,973 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Csah 61 over Midway River?

The structure is 115 ft (35 m) long with a longest span of 112 ft (34.1 m) and a deck 84 ft wide.

Who owns Csah 61 over Midway River?

It is owned by the County Highway Agency.