US Bridges

Csah 57 over Stream; Trail

Fair

Blue Earth County, Minnesota · 2.1 MI N of JCT TH 14 · Structure no. 07035

Built
1978
47 years old
Condition
Fair
inspected October 2024
Type
Frame
Steel Continuous
Length
544 ft
3 main spans
Daily traffic
2,650
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 57 over Stream; Trail is a steel continuous frame carrying Csah 57 over Stream; Trail 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 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 2,650 vehicles a day, roughly 7% of them trucks, projected to reach 2,650 by 2039. The structure is 544 ft (165.9 m) long and 65 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCsah 57
CrossesStream; Trail
Location2.1 MI N of JCT TH 14
RouteCounty Highway 57
CountyBlue Earth County
StateMinnesota
Coordinates44.20132, -93.97169
Functional classUrban 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 on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length544 ft (165.9 m)
Longest span280 ft (85.4 m)
Deck width65 ft (19.8 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (2016)
Projected traffic2,650 by 2039
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 57 over Stream; Trail built?

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

What condition is Csah 57 over Stream; Trail 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 57 over Stream; Trail carry?

About 2,650 vehicles per day (2016 count), of which roughly 7% are trucks.

How long is Csah 57 over Stream; Trail?

The structure is 544 ft (165.9 m) long with a longest span of 280 ft (85.4 m) and a deck 65 ft wide.

Who owns Csah 57 over Stream; Trail?

It is owned by the County Highway Agency.