US Bridges

Mn 19 over Knowles Creek (cd #9)

Fair

Rice County, Minnesota · 1.9 MI W of JCT TH 35 · Structure no. 96663

Built
1989
36 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
5,990
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 19 over Knowles Creek (cd #9) is a concrete culvert carrying Mn 19 over Knowles Creek (cd #9) in Rice 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 5,990 vehicles a day, roughly 9% of them trucks, projected to reach 6,000 by 2042. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMn 19
CrossesKnowles Creek (cd #9)
Location1.9 MI W of JCT TH 35
RouteState Highway 19
Coordinates44.47921, -93.32756
Functional classRural Minor Arterial

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 inspectionJune 2023
Inspection intervalevery 24 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 rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 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 traffic5,990 (2022)
Projected traffic6,000 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mn 19 over Knowles Creek (cd #9) built?

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

What condition is Mn 19 over Knowles Creek (cd #9) 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 June 2023.

How much traffic does Mn 19 over Knowles Creek (cd #9) carry?

About 5,990 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Mn 19 over Knowles Creek (cd #9)?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3.1 m).

Who owns Mn 19 over Knowles Creek (cd #9)?

It is owned by the State Highway Agency.