US Bridges

Csah 45 over CO Ditch # 15

Fair

Polk County, Minnesota · 1.6 MI E of JCT TH 9 · Structure no. 92449

Built
1966
59 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
50 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 45 over CO Ditch # 15 is a prestressed concrete channel beam carrying Csah 45 over CO Ditch # 15 in Polk County, Minnesota. It was built in 1966, so it is 59 years old, older 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 50 vehicles a day, projected to reach 55 by 2042. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 45
CrossesCO Ditch # 15
Location1.6 MI E of JCT TH 9
RouteCounty Highway 45
CountyPolk County
StateMinnesota
Coordinates47.7023, -96.53256
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.5 US tons
Inventory rating46.7 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length50 ft (15.2 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic55 by 2042
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 Csah 45 over CO Ditch # 15 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 45 over CO Ditch # 15 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 45 over CO Ditch # 15 carry?

About 50 vehicles per day (2022 count).

How long is Csah 45 over CO Ditch # 15?

The structure is 50 ft (15.2 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns Csah 45 over CO Ditch # 15?

It is owned by the County Highway Agency.