US Bridges

Csah 14 over Rum River

Good

Isanti County, Minnesota · 2.7 MI N of JCT TH 95 · Structure no. 30520

Built
2022
3 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
3 main spans
Daily traffic
515
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 14 over Rum River is a prestressed concrete stringer/multi-beam or girder carrying Csah 14 over Rum River in Isanti County, Minnesota. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 515 vehicles a day, roughly 9% of them trucks, projected to reach 612 by 2036. The structure is 240 ft (73 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCsah 14
CrossesRum River
Location2.7 MI N of JCT TH 95
RouteCounty Highway 14
Coordinates45.60891, -93.25688
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length240 ft (73 m)
Longest span100 ft (30.5 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic515 (2016)
Projected traffic612 by 2036
Trucks9%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 14 over Rum River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Csah 14 over Rum 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 2024.

How much traffic does Csah 14 over Rum River carry?

About 515 vehicles per day (2016 count), of which roughly 9% are trucks.

How long is Csah 14 over Rum River?

The structure is 240 ft (73 m) long with a longest span of 100 ft (30.5 m) and a deck 39 ft wide.

Who owns Csah 14 over Rum River?

It is owned by the County Highway Agency.