US Bridges

Mn 9 over CO Ditch # 45

Fair

Clay County, Minnesota · 3.1 MI S of Felton · Structure no. 8774

Built
1952
73 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
2,085
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 9 over CO Ditch # 45 is a concrete culvert carrying Mn 9 over CO Ditch # 45 in Clay County, Minnesota. It was built in 1952, so it is 73 years old, older 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 2,085 vehicles a day, roughly 24% of them trucks, projected to reach 1,900 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesMn 9
CrossesCO Ditch # 45
Location3.1 MI S of Felton
RouteState Highway 9
CountyClay County
StateMinnesota
Coordinates47.03321, -96.49992
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,085 (2022)
Projected traffic1,900 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mn 9 over CO Ditch # 45 built?

It was built in 1952, making it 73 years old in 2025.

What condition is Mn 9 over CO Ditch # 45 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 September 2023.

How much traffic does Mn 9 over CO Ditch # 45 carry?

About 2,085 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is Mn 9 over CO Ditch # 45?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Mn 9 over CO Ditch # 45?

It is owned by the State Highway Agency.