US Bridges

CR 29 over N Fk Watonwan River

Good

Cottonwood County, Minnesota · 0.3 MI N of JCT TH 30 · Structure no. 17504

Built
1962
63 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
51 ft
3 main spans
Daily traffic
50
2008 count
Owner
County
County Highway Agency

About this bridge

CR 29 over N Fk Watonwan River is a prestressed concrete channel beam carrying CR 29 over N Fk Watonwan River in Cottonwood County, Minnesota. It was built in 1962, so it is 63 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 51 ft (15.5 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 29
CrossesN Fk Watonwan River
Location0.3 MI N of JCT TH 30
RouteCounty Highway 29
Coordinates44.05391, -94.95985
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.7 US tons
Inventory rating35.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2008)
Projected traffic50 by 2029
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 29 over N Fk Watonwan River built?

It was built in 1962, making it 63 years old in 2025.

What condition is CR 29 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 29 over N Fk Watonwan River carry?

About 50 vehicles per day (2008 count).

How long is CR 29 over N Fk Watonwan River?

The structure is 51 ft (15.5 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns CR 29 over N Fk Watonwan River?

It is owned by the County Highway Agency.