US Bridges

Spr 15 over Hay Creek

Poor

Pine County, Minnesota · 2.1 MI W of JCT Csah 22 · Structure no. L3121

Built
1937
88 years old
Condition
Poor
inspected October 2024
Type
Slab
Wood or Timber
Length
21 ft
1 main span
Daily traffic
40
1986 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Spr 15 over Hay Creek is a wood or timber slab carrying Spr 15 over Hay Creek in Pine County, Minnesota. It was built in 1937, so it is 88 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 40 vehicles a day, projected to reach 40 by 2029. The structure is 21 ft (6.4 m) long and 15 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSpr 15
CrossesHay Creek
Location2.1 MI W of JCT Csah 22
RouteState Lands Road 15
CountyPine County
StateMinnesota
Coordinates45.9504, -92.6425
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, 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 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.7 US tons
Inventory rating58.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span17 ft (5.3 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1986)
Projected traffic40 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$57 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Spr 15 over Hay Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Spr 15 over Hay 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 15 over Hay Creek carry?

About 40 vehicles per day (1986 count).

How long is Spr 15 over Hay Creek?

The structure is 21 ft (6.4 m) long with a longest span of 17 ft (5.3 m) and a deck 15 ft wide.

Who owns Spr 15 over Hay Creek?

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