US Bridges

CR 42 over Mayhew Creek

Fair

Benton County, Minnesota · 0.8 MI S of JCT Csah 12 · Structure no. 96908

Built
1989
36 years old
Condition
Fair
inspected October 2022
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
55
2019 count
Owner
County
County Highway Agency

About this bridge

CR 42 over Mayhew Creek is a concrete culvert carrying CR 42 over Mayhew Creek in Benton County, Minnesota. It was built in 1989, so it is 36 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 55 vehicles a day, projected to reach 45 by 2039. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCR 42
CrossesMayhew Creek
Location0.8 MI S of JCT Csah 12
RouteCounty Highway 42
Coordinates45.76809, -94.07039
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.9 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2019)
Projected traffic45 by 2039
Trucks—
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

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 42 over Mayhew Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is CR 42 over Mayhew Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2022.

How much traffic does CR 42 over Mayhew Creek carry?

About 55 vehicles per day (2019 count).

How long is CR 42 over Mayhew Creek?

The structure is 29 ft (8.9 m) long with a longest span of 11 ft (3.5 m).

Who owns CR 42 over Mayhew Creek?

It is owned by the County Highway Agency.