US Bridges

US 12 over CO Ditch # 3

Good

Swift County, Minnesota · 4.3 MI W of JCT Mn 29 · Structure no. 76019

Built
2023
2 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
59 ft
2 main spans
Daily traffic
1,318
2022 count
Owner
State
State Highway Agency

About this bridge

US 12 over CO Ditch # 3 is a concrete continuous slab carrying US 12 over CO Ditch # 3 in Swift County, Minnesota. It was built in 2023, so it is 2 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 1,318 vehicles a day, roughly 47% of them trucks, projected to reach 1,590 by 2042. The structure is 59 ft (17.9 m) long and 51 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesUS 12
CrossesCO Ditch # 3
Location4.3 MI W of JCT Mn 29
RouteU.S. Route 12
Coordinates45.30031, -95.68777
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length59 ft (17.9 m)
Longest span29 ft (8.7 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,318 (2022)
Projected traffic1,590 by 2042
Trucks47%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 12 over CO Ditch # 3 built?

It was built in 2023, making it 2 years old in 2025.

What condition is US 12 over CO Ditch # 3 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 2024.

How much traffic does US 12 over CO Ditch # 3 carry?

About 1,318 vehicles per day (2022 count), of which roughly 47% are trucks.

How long is US 12 over CO Ditch # 3?

The structure is 59 ft (17.9 m) long with a longest span of 29 ft (8.7 m) and a deck 51 ft wide.

Who owns US 12 over CO Ditch # 3?

It is owned by the State Highway Agency.