US Bridges

T 847 over Straight River

Good

Rice County, Minnesota · 0.8 MI E of JCT Csah 19 · Structure no. 66532

Built
2000
25 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
54
2000 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 847 over Straight River is a prestressed concrete stringer/multi-beam or girder carrying T 847 over Straight River in Rice County, Minnesota. It was built in 2000, so it is 25 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 54 vehicles a day, projected to reach 54 by 2029. The structure is 174 ft (53 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT 847
CrossesStraight River
Location0.8 MI E of JCT Csah 19
RouteCounty Highway 847
Coordinates44.25782, -93.23135
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating43.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length174 ft (53 m)
Longest span58 ft (17.6 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2000)
Projected traffic54 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 847 over Straight River built?

It was built in 2000, making it 25 years old in 2025.

What condition is T 847 over Straight River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does T 847 over Straight River carry?

About 54 vehicles per day (2000 count).

How long is T 847 over Straight River?

The structure is 174 ft (53 m) long with a longest span of 58 ft (17.6 m) and a deck 34 ft wide.

Who owns T 847 over Straight River?

It is owned by the Town or Township Highway Agency.