US Bridges

Spr 18 over Sand Creek

Fair

Pine County, Minnesota · 3.5 MI W of JCT Csah 22 · Structure no. L3120

Built
1936
89 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
55 ft
3 main spans
Daily traffic
30
1986 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Spr 18 over Sand Creek is a wood or timber slab carrying Spr 18 over Sand Creek in Pine County, Minnesota. It was built in 1936, so it is 89 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 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 30 vehicles a day, projected to reach 30 by 2029. The structure is 55 ft (16.9 m) long and 15 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSpr 18
CrossesSand Creek
Location3.5 MI W of JCT Csah 22
RouteState Lands Road 18
Coordinates45.952, -92.6682
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating84.8 US tons
Inventory rating62.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 25 or greater
Structure length55 ft (16.9 m)
Longest span19 ft (5.8 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1986)
Projected traffic30 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$198 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Spr 18 over Sand Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Spr 18 over Sand Creek 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 2024.

How much traffic does Spr 18 over Sand Creek carry?

About 30 vehicles per day (1986 count).

How long is Spr 18 over Sand Creek?

The structure is 55 ft (16.9 m) long with a longest span of 19 ft (5.8 m) and a deck 15 ft wide.

Who owns Spr 18 over Sand Creek?

It is owned by the State Park, Forest, or Reservation Agency.