US Bridges

Csah 3 over I 35;RAMP

Fair

Carlton County, Minnesota · 0.5 MI N of JCT TH 33 · Structure no. 09837

Built
1982
43 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
266 ft
2 main spans
Daily traffic
6,700
2018 count
Owner
State
State Highway Agency

About this bridge

Csah 3 over I 35;RAMP is a steel continuous stringer/multi-beam or girder carrying Csah 3 over I 35;RAMP in Carlton County, Minnesota. It was built in 1982, so it is 43 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 6,700 vehicles a day, projected to reach 5,700 by 2038. The structure is 266 ft (81.1 m) long and 50 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 3
CrossesI 35;RAMP
Location0.5 MI N of JCT TH 33
RouteCounty Highway 3
CountyCarlton County
StateMinnesota
Coordinates46.69352, -92.44859
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length266 ft (81.1 m)
Longest span130 ft (39.6 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2018)
Projected traffic5,700 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Csah 3 over I 35;RAMP built?

It was built in 1982, making it 43 years old in 2025.

What condition is Csah 3 over I 35;RAMP 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 June 2024.

How much traffic does Csah 3 over I 35;RAMP carry?

About 6,700 vehicles per day (2018 count).

How long is Csah 3 over I 35;RAMP?

The structure is 266 ft (81.1 m) long with a longest span of 130 ft (39.6 m) and a deck 50 ft wide.

Who owns Csah 3 over I 35;RAMP?

It is owned by the State Highway Agency.