US Bridges

T 329 over Stream

Good

Norman County, Minnesota · 0.4 MI W of JCT TH 9 · Structure no. 93727

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
60
1988 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 329 over Stream is a concrete culvert carrying T 329 over Stream in Norman County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, projected to reach 60 by 2029. The structure is 48 ft (14.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 329
CrossesStream
Location0.4 MI W of JCT TH 9
RouteCounty Highway 329
Coordinates47.39756, -96.52522
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable 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 spans3
Design loadHS 20
Structure length48 ft (14.7 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (1988)
Projected traffic60 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 329 over Stream built?

It was built in 1985, making it 40 years old in 2025.

What condition is T 329 over Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does T 329 over Stream carry?

About 60 vehicles per day (1988 count).

How long is T 329 over Stream?

The structure is 48 ft (14.7 m) long with a longest span of 10 ft (3.1 m).

Who owns T 329 over Stream?

It is owned by the Town or Township Highway Agency.