US Bridges

T 3 over Cedar Run

Poor

Martin County, Minnesota · 1.9 MI N of JCT Csah 44 · Structure no. L9577

Built
1975
50 years old
Condition
Poor
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
28
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 3 over Cedar Run is a prestressed concrete channel beam carrying T 3 over Cedar Run in Martin County, Minnesota. It was built in 1975, so it is 50 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.

It carries about 28 vehicles a day, projected to reach 28 by 2029. The structure is 31 ft (9.4 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT 3
CrossesCedar Run
Location1.9 MI N of JCT Csah 44
RouteCounty Highway 3
CountyMartin County
StateMinnesota
Coordinates43.80516, -94.79441
Functional classRural Local

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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.3 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 width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (1986)
Projected traffic28 by 2029
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

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 3 over Cedar Run built?

It was built in 1975, making it 50 years old in 2025.

What condition is T 3 over Cedar Run 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 October 2024.

How much traffic does T 3 over Cedar Run carry?

About 28 vehicles per day (1986 count).

How long is T 3 over Cedar Run?

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

Who owns T 3 over Cedar Run?

It is owned by the Town or Township Highway Agency.