US Bridges

CR 99 over N Fk Watonwan River

Good

Cottonwood County, Minnesota · 0.2 MI W of JCT TH 30 · Structure no. 17512

Built
1968
57 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
81 ft
3 main spans
Daily traffic
48
2021 count
Owner
County
County Highway Agency

About this bridge

CR 99 over N Fk Watonwan River is a prestressed concrete channel beam carrying CR 99 over N Fk Watonwan River in Cottonwood County, Minnesota. It was built in 1968, so it is 57 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 48 vehicles a day, projected to reach 70 by 2041. The structure is 81 ft (24.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 99
CrossesN Fk Watonwan River
Location0.2 MI W of JCT TH 30
RouteCounty Highway 99
Coordinates44.05307, -94.97987
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.7 US tons
Inventory rating36.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length81 ft (24.6 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48 (2021)
Projected traffic70 by 2041
Trucks—
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 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 99 over N Fk Watonwan River built?

It was built in 1968, making it 57 years old in 2025.

What condition is CR 99 over N 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 CR 99 over N Fk Watonwan River carry?

About 48 vehicles per day (2021 count).

How long is CR 99 over N Fk Watonwan River?

The structure is 81 ft (24.6 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns CR 99 over N Fk Watonwan River?

It is owned by the County Highway Agency.