US Bridges

US 14 over Csah 3

Fair

Blue Earth County, Minnesota · 2.8 MI E of JCT TH 169 · Structure no. 07020

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 ft
3 main spans
Daily traffic
18,538
2022 count
Owner
State
State Highway Agency

About this bridge

US 14 over Csah 3 is a prestressed concrete stringer/multi-beam or girder carrying US 14 over Csah 3 in Blue Earth County, Minnesota. It was built in 1976, so it is 49 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 18,538 vehicles a day, roughly 15% of them trucks, projected to reach 16,500 by 2042. The structure is 167 ft (50.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 14
CrossesCsah 3
Location2.8 MI E of JCT TH 169
RouteU.S. Route 14
CountyBlue Earth County
StateMinnesota
Coordinates44.17941, -93.96631
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.8 m)
Longest span77 ft (23.5 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,538 (2022)
Projected traffic16,500 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 14 over Csah 3 built?

It was built in 1976, making it 49 years old in 2025.

What condition is US 14 over Csah 3 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 July 2023.

How much traffic does US 14 over Csah 3 carry?

About 18,538 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is US 14 over Csah 3?

The structure is 167 ft (50.8 m) long with a longest span of 77 ft (23.5 m) and a deck 44 ft wide.

Who owns US 14 over Csah 3?

It is owned by the State Highway Agency.