US Bridges

CR 122 over Over E Fk Des Mo

PoorPosted for load

Martin County, Minnesota · 1.9 MI W of JCT TH 4 · Structure no. 46507

Built
1966
59 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
81 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

CR 122 over Over E Fk Des Mo is a prestressed concrete channel beam carrying CR 122 over Over E Fk Des Mo in Martin County, Minnesota. It was built in 1966, so it is 59 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 45 vehicles a day, projected to reach 55 by 2042. The structure is 81 ft (24.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 122
CrossesOver E Fk Des Mo
Location1.9 MI W of JCT TH 4
RouteCounty Highway 122
Coordinates43.61714, -94.81235
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18 US tons
Inventory rating10.8 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length81 ft (24.7 m)
Longest span31 ft (9.5 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic55 by 2042
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 122 over Over E Fk Des Mo built?

It was built in 1966, making it 59 years old in 2025.

What condition is CR 122 over Over E Fk Des Mo in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does CR 122 over Over E Fk Des Mo carry?

About 45 vehicles per day (2022 count).

How long is CR 122 over Over E Fk Des Mo?

The structure is 81 ft (24.7 m) long with a longest span of 31 ft (9.5 m) and a deck 31 ft wide.

Who owns CR 122 over Over E Fk Des Mo?

It is owned by the County Highway Agency.