US Bridges

CR 848 over Joe Martin Brook

FairPosted for load

St. Louis County, Minnesota · 1.4 MI S of JCT TH 2 · Structure no. 69619

Built
1998
27 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
125
2019 count
Owner
County
County Highway Agency

About this bridge

CR 848 over Joe Martin Brook is a steel stringer/multi-beam or girder carrying CR 848 over Joe Martin Brook in St. Louis County, Minnesota. It was built in 1998, so it is 27 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, projected to reach 120 by 2039. The structure is 25 ft (7.6 m) long and 18 ft wide. If it were closed, the detour would be 123 mi (198 km).

Location

Open in Google Maps
CarriesCR 848
CrossesJoe Martin Brook
Location1.4 MI S of JCT TH 2
RouteCounty Highway 848
CountySt. Louis County
StateMinnesota
Coordinates46.83543, -92.68053
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating20.9 US tons
Inventory rating15.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2019)
Projected traffic120 by 2039
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 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$500 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 848 over Joe Martin Brook built?

It was built in 1998, making it 27 years old in 2025.

What condition is CR 848 over Joe Martin Brook 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 May 2024.

How much traffic does CR 848 over Joe Martin Brook carry?

About 125 vehicles per day (2019 count).

How long is CR 848 over Joe Martin Brook?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 18 ft wide.

Who owns CR 848 over Joe Martin Brook?

It is owned by the County Highway Agency.