US Bridges

Spr 18 over Bear Creek

Poor

Pine County, Minnesota · 6.2 MI W of JCT Csah 22 · Structure no. L3119

Built
1936
89 years old
Condition
Poor
inspected October 2024
Type
Slab
Wood or Timber
Length
42 ft
2 main spans
Daily traffic
15
1986 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Spr 18 over Bear Creek is a wood or timber slab carrying Spr 18 over Bear 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 15 vehicles a day, projected to reach 15 by 2029. The structure is 42 ft (12.8 m) long and 15 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSpr 18
CrossesBear Creek
Location6.2 MI W of JCT Csah 22
RouteState Lands Road 18
Coordinates45.9459, -92.7128
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 25 or greater
Structure length42 ft (12.8 m)
Longest span19 ft (5.7 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1986)
Projected traffic15 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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$153 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Spr 18 over Bear Creek built?

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

What condition is Spr 18 over Bear Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Spr 18 over Bear Creek carry?

About 15 vehicles per day (1986 count).

How long is Spr 18 over Bear Creek?

The structure is 42 ft (12.8 m) long with a longest span of 19 ft (5.7 m) and a deck 15 ft wide.

Who owns Spr 18 over Bear Creek?

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