US Bridges

T 598 over Poplar River

Fair

Polk County, Minnesota · 0.1 MI E of JCT TH 2 · Structure no. L5787

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
72
1973 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 598 over Poplar River is a concrete culvert carrying T 598 over Poplar River in Polk County, Minnesota. It was built in 1971, so it is 54 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 6 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 72 vehicles a day, projected to reach 72 by 2029. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesT 598
CrossesPoplar River
Location0.1 MI E of JCT TH 2
RouteCounty Highway 598
Coordinates47.62975, -95.86955
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic72 (1973)
Projected traffic72 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was T 598 over Poplar River built?

It was built in 1971, making it 54 years old in 2025.

What condition is T 598 over Poplar River 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 2023.

How much traffic does T 598 over Poplar River carry?

About 72 vehicles per day (1973 count).

How long is T 598 over Poplar River?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (2.9 m).

Who owns T 598 over Poplar River?

It is owned by the Town or Township Highway Agency.