US Bridges

Csah 3 over I 35

Fair

Rice County, Minnesota · 3.6 MI N of JCT TH 19 · Structure no. 66807

Built
1963
62 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
235 ft
4 main spans
Daily traffic
640
2016 count
Owner
State
State Highway Agency

About this bridge

Csah 3 over I 35 is a prestressed concrete stringer/multi-beam or girder carrying Csah 3 over I 35 in Rice County, Minnesota. It was built in 1963, so it is 62 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 5 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 640 vehicles a day, projected to reach 640 by 2039. The structure is 235 ft (71.6 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCsah 3
CrossesI 35
Location3.6 MI N of JCT TH 19
RouteCounty Highway 3
Coordinates44.52249, -93.29439
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating32.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length235 ft (71.6 m)
Longest span73 ft (22.2 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2016)
Projected traffic640 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed13 mi (21 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 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Csah 3 over I 35 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 August 2023.

How much traffic does Csah 3 over I 35 carry?

About 640 vehicles per day (2016 count).

How long is Csah 3 over I 35?

The structure is 235 ft (71.6 m) long with a longest span of 73 ft (22.2 m) and a deck 33 ft wide.

Who owns Csah 3 over I 35?

It is owned by the State Highway Agency.