US Bridges

CR 149 over N Br Root River

Good

Olmsted County, Minnesota · 0.4 MI N of JCT Csah 3 · Structure no. 55531

Built
1980
45 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
139 ft
3 main spans
Daily traffic
25
2010 count
Owner
County
County Highway Agency

About this bridge

CR 149 over N Br Root River is a prestressed concrete tee beam carrying CR 149 over N Br Root River in Olmsted County, Minnesota. It was built in 1980, so it is 45 years old, older 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 25 vehicles a day, projected to reach 26 by 2030. The structure is 139 ft (42.4 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 149
CrossesN Br Root River
Location0.4 MI N of JCT Csah 3
RouteCounty Highway 149
Coordinates43.84604, -92.66998
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating29.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length139 ft (42.4 m)
Longest span46 ft (14.1 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2010)
Projected traffic26 by 2030
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

OwnerCounty Highway Agency
Maintained byCounty 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 CR 149 over N Br Root River built?

It was built in 1980, making it 45 years old in 2025.

What condition is CR 149 over N Br Root 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 October 2023.

How much traffic does CR 149 over N Br Root River carry?

About 25 vehicles per day (2010 count).

How long is CR 149 over N Br Root River?

The structure is 139 ft (42.4 m) long with a longest span of 46 ft (14.1 m) and a deck 36 ft wide.

Who owns CR 149 over N Br Root River?

It is owned by the County Highway Agency.