US Bridges

Csah 1 over Mp; L Canal

Poor

Carlton County, Minnesota · 0.6 MI E of JCT TH 210 · Structure no. 09504

Built
1976
49 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
1,006
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over Mp; L Canal is a prestressed concrete stringer/multi-beam or girder carrying Csah 1 over Mp; L Canal in Carlton County, Minnesota. It was built in 1976, so it is 49 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,006 vehicles a day, projected to reach 810 by 2042. The structure is 122 ft (37.1 m) long and 40 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCsah 1
CrossesMp; L Canal
Location0.6 MI E of JCT TH 210
RouteCounty Highway 1
CountyCarlton County
StateMinnesota
Coordinates46.66454, -92.38602
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67.2 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length122 ft (37.1 m)
Longest span115 ft (35.1 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,006 (2022)
Projected traffic810 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Csah 1 over Mp; L Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is Csah 1 over Mp; L Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does Csah 1 over Mp; L Canal carry?

About 1,006 vehicles per day (2022 count).

How long is Csah 1 over Mp; L Canal?

The structure is 122 ft (37.1 m) long with a longest span of 115 ft (35.1 m) and a deck 40 ft wide.

Who owns Csah 1 over Mp; L Canal?

It is owned by the County Highway Agency.