US Bridges

CR 109 over CO Ditch # 50

Good

Blue Earth County, Minnesota · 0.6 MI S of JCT Csah 6 · Structure no. 93306

Built
1978
47 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
542
2021 count
Owner
County
County Highway Agency

About this bridge

CR 109 over CO Ditch # 50 is a concrete culvert carrying CR 109 over CO Ditch # 50 in Blue Earth County, Minnesota. It was built in 1978, so it is 47 years old, older 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 542 vehicles a day, projected to reach 660 by 2041. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 109
CrossesCO Ditch # 50
Location0.6 MI S of JCT Csah 6
RouteCounty Highway 109
Coordinates44.11393, -94.26875
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum 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 length28 ft (8.4 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic542 (2021)
Projected traffic660 by 2041
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 CR 109 over CO Ditch # 50 built?

It was built in 1978, making it 47 years old in 2025.

What condition is CR 109 over CO Ditch # 50 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 September 2023.

How much traffic does CR 109 over CO Ditch # 50 carry?

About 542 vehicles per day (2021 count).

How long is CR 109 over CO Ditch # 50?

The structure is 28 ft (8.4 m) long with a longest span of 11 ft (3.5 m).

Who owns CR 109 over CO Ditch # 50?

It is owned by the County Highway Agency.