US Bridges

T 537 over Nokasippi River

PoorPosted for load

Crow Wing County, Minnesota · 0.4 MI SE of JCT Csah 24 · Structure no. L5862

Built
1972
53 years old
Condition
Poor
inspected September 2024
Type
Slab
Wood or Timber
Length
27 ft
1 main span
Daily traffic
60
1989 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 537 over Nokasippi River is a wood or timber slab carrying T 537 over Nokasippi River in Crow Wing County, Minnesota. It was built in 1972, so it is 53 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. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 60 by 2029. The structure is 27 ft (8.1 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 537
CrossesNokasippi River
Location0.4 MI SE of JCT Csah 24
RouteCounty Highway 537
Coordinates46.32318, -94.02155
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating55.1 US tons
Inventory rating39.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length27 ft (8.1 m)
Longest span23 ft (7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1989)
Projected traffic60 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$631.2 million (2029 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was T 537 over Nokasippi River built?

It was built in 1972, making it 53 years old in 2025.

What condition is T 537 over Nokasippi River 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 September 2024.

How much traffic does T 537 over Nokasippi River carry?

About 60 vehicles per day (1989 count).

How long is T 537 over Nokasippi River?

The structure is 27 ft (8.1 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns T 537 over Nokasippi River?

It is owned by the Town or Township Highway Agency.