US Bridges

Csah 11 over Elk River

FairPosted for load

Sherburne County, Minnesota · 0.1 MI S of JCT CR 73 · Structure no. 71506

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
135 ft
3 main spans
Daily traffic
4,400
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Elk River is a wood or timber stringer/multi-beam or girder carrying Csah 11 over Elk River in Sherburne County, Minnesota. It was built in 1971, so it is 54 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 4,400 vehicles a day, projected to reach 4,000 by 2038. The structure is 135 ft (41.3 m) long and 41 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesElk River
Location0.1 MI S of JCT CR 73
RouteCounty Highway 11
CountySherburne County
StateMinnesota
Coordinates45.38513, -93.81902
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length135 ft (41.3 m)
Longest span45 ft (13.7 m)
Deck width41 ft (12.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2018)
Projected traffic4,000 by 2038
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

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 Csah 11 over Elk River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Csah 11 over Elk River 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 11 over Elk River carry?

About 4,400 vehicles per day (2018 count).

How long is Csah 11 over Elk River?

The structure is 135 ft (41.3 m) long with a longest span of 45 ft (13.7 m) and a deck 41 ft wide.

Who owns Csah 11 over Elk River?

It is owned by the County Highway Agency.