US Bridges

Csah 14 over Stream

PoorPosted for load

Blue Earth County, Minnesota · 1.3 MI N of S CO Line · Structure no. 90519

Built
1960
65 years old
Condition
Poor
inspected September 2024
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
299
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 14 over Stream is a prestressed concrete channel beam carrying Csah 14 over Stream in Blue Earth County, Minnesota. It was built in 1960, so it is 65 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 299 vehicles a day, projected to reach 300 by 2042. The structure is 31 ft (9.4 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 14
CrossesStream
Location1.3 MI N of S CO Line
RouteCounty Highway 14
CountyBlue Earth County
StateMinnesota
Coordinates43.86665, -93.83297
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.8 US tons
Inventory rating11.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic299 (2022)
Projected traffic300 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$265 million (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 14 over Stream built?

It was built in 1960, making it 65 years old in 2025.

What condition is Csah 14 over Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Csah 14 over Stream carry?

About 299 vehicles per day (2022 count).

How long is Csah 14 over Stream?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 31 ft wide.

Who owns Csah 14 over Stream?

It is owned by the County Highway Agency.