US Bridges

Csah 13 over Blue Earth River

Good

Blue Earth County, Minnesota · 1.8 MI W of JCT Csah 1 · Structure no. 07602

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
2 main spans
Daily traffic
360
2023 count
Owner
County
County Highway Agency

About this bridge

Csah 13 over Blue Earth River is a prestressed concrete stringer/multi-beam or girder carrying Csah 13 over Blue Earth River in Blue Earth County, Minnesota. It was built in 2024, so it is 1 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 360 vehicles a day, roughly 9% of them trucks, projected to reach 396 by 2043. The structure is 270 ft (82.3 m) long and 39 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCsah 13
CrossesBlue Earth River
Location1.8 MI W of JCT Csah 1
RouteCounty Highway 13
Coordinates44.01064, -94.11169
Functional classRural Major Collector

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 inspectionDecember 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 geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length270 ft (82.3 m)
Longest span134 ft (40.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2023)
Projected traffic396 by 2043
Trucks9%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 13 over Blue Earth River built?

It was built in 2024, making it 1 years old in 2025.

What condition is Csah 13 over Blue Earth 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 December 2024.

How much traffic does Csah 13 over Blue Earth River carry?

About 360 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Csah 13 over Blue Earth River?

The structure is 270 ft (82.3 m) long with a longest span of 134 ft (40.8 m) and a deck 39 ft wide.

Who owns Csah 13 over Blue Earth River?

It is owned by the County Highway Agency.