US Bridges

CR 169 over Little Cobb River

Good

Blue Earth County, Minnesota · 0.5 MI S of JCT Csah 10 · Structure no. 07598

Built
2022
3 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
58
2022 count
Owner
County
County Highway Agency

About this bridge

CR 169 over Little Cobb River is a prestressed concrete stringer/multi-beam or girder carrying CR 169 over Little Cobb River in Blue Earth County, Minnesota. It was built in 2022, so it is 3 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 58 vehicles a day, projected to reach 75 by 2042. The structure is 101 ft (30.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 169
CrossesLittle Cobb River
Location0.5 MI S of JCT Csah 10
RouteCounty Highway 169
Coordinates44.01501, -93.85867
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating36.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length101 ft (30.9 m)
Longest span98 ft (29.9 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2022)
Projected traffic75 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 169 over Little Cobb River built?

It was built in 2022, making it 3 years old in 2025.

What condition is CR 169 over Little Cobb River 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 October 2024.

How much traffic does CR 169 over Little Cobb River carry?

About 58 vehicles per day (2022 count).

How long is CR 169 over Little Cobb River?

The structure is 101 ft (30.9 m) long with a longest span of 98 ft (29.9 m) and a deck 31 ft wide.

Who owns CR 169 over Little Cobb River?

It is owned by the County Highway Agency.