US Bridges

Mn 22 over Robarts Creek

Good

Nicollet County, Minnesota · 4.4 MI NW of ST Peter · Structure no. 4014

Built
1923
102 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
900
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 22 over Robarts Creek is a concrete culvert carrying Mn 22 over Robarts Creek in Nicollet County, Minnesota. It was built in 1923, so it is 102 years old, older 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 900 vehicles a day, roughly 11% of them trucks, projected to reach 980 by 2039. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMn 22
CrossesRobarts Creek
Location4.4 MI NW of ST Peter
RouteState Highway 22
Coordinates44.3724, -94.00342
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating28.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2019)
Projected traffic980 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$102 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 22 over Robarts Creek built?

It was built in 1923, making it 102 years old in 2025.

What condition is Mn 22 over Robarts Creek 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 August 2023.

How much traffic does Mn 22 over Robarts Creek carry?

About 900 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Mn 22 over Robarts Creek?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m).

Who owns Mn 22 over Robarts Creek?

It is owned by the State Highway Agency.