US Bridges

Csah 9 over Plymouth Creek

Fair

Hennepin County, Minnesota · 0.9 MI E of JCT Mn 55 · Structure no. R0940

Built
1987
38 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
1
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over Plymouth Creek is a concrete culvert carrying Csah 9 over Plymouth Creek in Hennepin County, Minnesota. It was built in 1987, so it is 38 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 1 vehicles a day, projected to reach 1 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCsah 9
CrossesPlymouth Creek
Location0.9 MI E of JCT Mn 55
RouteCounty Highway 9
Coordinates45.02805, -93.47704
Functional classUrban 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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior 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 spans3
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2022)
Projected traffic1 by 2042
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 9 over Plymouth Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Csah 9 over Plymouth Creek 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 October 2024.

How much traffic does Csah 9 over Plymouth Creek carry?

About 1 vehicles per day (2022 count).

How long is Csah 9 over Plymouth Creek?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m).

Who owns Csah 9 over Plymouth Creek?

It is owned by the County Highway Agency.