US Bridges

Msas 129 over CO Ditch #4

Good

Clay County, Minnesota · 0.2 MI W of JCT TH 75 · Structure no. 97785

Built
1995
30 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
49 ft
2 main spans
Daily traffic
6,387
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Msas 129 over CO Ditch #4 is a concrete culvert carrying Msas 129 over CO Ditch #4 in Clay County, Minnesota. It was built in 1995, so it is 30 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,387 vehicles a day, roughly 10% of them trucks, projected to reach 6,200 by 2041. The structure is 49 ft (15 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMsas 129
CrossesCO Ditch #4
Location0.2 MI W of JCT TH 75
RouteCity Street 129
CountyClay County
StateMinnesota
Coordinates46.89058, -96.75078
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length49 ft (15 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,387 (2021)
Projected traffic6,200 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Msas 129 over CO Ditch #4 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Msas 129 over CO Ditch #4 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 2023.

How much traffic does Msas 129 over CO Ditch #4 carry?

About 6,387 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Msas 129 over CO Ditch #4?

The structure is 49 ft (15 m) long with a longest span of 20 ft (6.1 m).

Who owns Msas 129 over CO Ditch #4?

It is owned by the City or Municipal Highway Agency.