US Bridges

T 221 over CO Ditch # 15

Good

Polk County, Minnesota · 0.1 MI S of JCT Csah 45 · Structure no. 96650

Built
1988
37 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
5
1988 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 221 over CO Ditch # 15 is a concrete culvert carrying T 221 over CO Ditch # 15 in Polk County, Minnesota. It was built in 1988, so it is 37 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 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 5 vehicles a day, projected to reach 5 by 2029. The structure is 27 ft (8.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 221
CrossesCO Ditch # 15
Location0.1 MI S of JCT Csah 45
RouteCounty Highway 221
Coordinates47.70139, -96.54621
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 length27 ft (8.1 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (1988)
Projected traffic5 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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 221 over CO Ditch # 15 built?

It was built in 1988, making it 37 years old in 2025.

What condition is T 221 over CO Ditch # 15 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 2023.

How much traffic does T 221 over CO Ditch # 15 carry?

About 5 vehicles per day (1988 count).

How long is T 221 over CO Ditch # 15?

The structure is 27 ft (8.1 m) long with a longest span of 10 ft (3.1 m).

Who owns T 221 over CO Ditch # 15?

It is owned by the Town or Township Highway Agency.