US Bridges

Csah 22 over Wakefield Brook

Poor

Aitkin County, Minnesota · 1.2 MI W of JCT Csah 24 · Structure no. 01502

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Slab
Wood or Timber
Length
59 ft
3 main spans
Daily traffic
730
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 22 over Wakefield Brook is a wood or timber slab carrying Csah 22 over Wakefield Brook in Aitkin County, Minnesota. It was built in 1960, so it is 65 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 4 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.

It carries about 730 vehicles a day, projected to reach 610 by 2040. The structure is 59 ft (18 m) long and 30 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesCsah 22
CrossesWakefield Brook
Location1.2 MI W of JCT Csah 24
RouteCounty Highway 22
CountyAitkin County
StateMinnesota
Coordinates46.59329, -93.77766
Functional classRural Major Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating34.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 20
Structure length59 ft (18 m)
Longest span20 ft (6 m)
Deck width30 ft (9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2020)
Projected traffic610 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$49 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 22 over Wakefield Brook built?

It was built in 1960, making it 65 years old in 2025.

What condition is Csah 22 over Wakefield Brook 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 Csah 22 over Wakefield Brook carry?

About 730 vehicles per day (2020 count).

How long is Csah 22 over Wakefield Brook?

The structure is 59 ft (18 m) long with a longest span of 20 ft (6 m) and a deck 30 ft wide.

Who owns Csah 22 over Wakefield Brook?

It is owned by the County Highway Agency.