US Bridges

Csah 84 over TH 15

Fair

Stearns County, Minnesota · 1.0 MI N of JCT TH 94 · Structure no. 73046

Built
2014
11 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
234 ft
2 main spans
Daily traffic
5,620
2022 count
Owner
State
State Highway Agency

About this bridge

Csah 84 over TH 15 is a prestressed concrete stringer/multi-beam or girder carrying Csah 84 over TH 15 in Stearns County, Minnesota. It was built in 2014, so it is 11 years old, younger 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 5,620 vehicles a day, roughly 3% of them trucks, projected to reach 4,950 by 2042. The structure is 234 ft (71.3 m) long and 85 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 84
CrossesTH 15
Location1.0 MI N of JCT TH 94
RouteCounty Highway 84
CountyStearns County
StateMinnesota
Coordinates45.51548, -94.22642
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length234 ft (71.3 m)
Longest span115 ft (35 m)
Deck width85 ft (26 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,620 (2022)
Projected traffic4,950 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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 84 over TH 15 built?

It was built in 2014, making it 11 years old in 2025.

What condition is Csah 84 over TH 15 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 October 2023.

How much traffic does Csah 84 over TH 15 carry?

About 5,620 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Csah 84 over TH 15?

The structure is 234 ft (71.3 m) long with a longest span of 115 ft (35 m) and a deck 85 ft wide.

Who owns Csah 84 over TH 15?

It is owned by the State Highway Agency.