US Bridges

Csah 54 over S Fk Watonwan River

Good

Martin County, Minnesota · 0.4 MI E of JCT Csah 9 · Structure no. 46J35

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
52 ft
3 main spans
Daily traffic
661
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 54 over S Fk Watonwan River is a concrete culvert carrying Csah 54 over S Fk Watonwan River in Martin County, Minnesota. It was built in 2020, so it is 5 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 661 vehicles a day, roughly 9% of them trucks, projected to reach 819 by 2042. The structure is 52 ft (15.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 54
CrossesS Fk Watonwan River
Location0.4 MI E of JCT Csah 9
RouteCounty Highway 54
Coordinates43.84823, -94.76734
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length52 ft (15.7 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic661 (2022)
Projected traffic819 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 54 over S Fk Watonwan River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Csah 54 over S Fk Watonwan River 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 Csah 54 over S Fk Watonwan River carry?

About 661 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Csah 54 over S Fk Watonwan River?

The structure is 52 ft (15.7 m) long with a longest span of 16 ft (4.9 m).

Who owns Csah 54 over S Fk Watonwan River?

It is owned by the County Highway Agency.