US Bridges

T 329 over Elm Creek

Fair

Martin County, Minnesota · 0.4 MI S of JCT Csah 44 · Structure no. 46554

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
60 ft
3 main spans
Daily traffic
20
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 329 over Elm Creek is a wood or timber slab carrying T 329 over Elm Creek in Martin County, Minnesota. It was built in 1983, so it is 42 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 20 vehicles a day, projected to reach 20 by 2029. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT 329
CrossesElm Creek
Location0.4 MI S of JCT Csah 44
RouteCounty Highway 329
Coordinates43.77186, -94.85451
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (1986)
Projected traffic20 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 Elm Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is T 329 over Elm Creek 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 2024.

How much traffic does T 329 over Elm Creek carry?

About 20 vehicles per day (1986 count).

How long is T 329 over Elm Creek?

The structure is 60 ft (18.3 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns T 329 over Elm Creek?

It is owned by the Town or Township Highway Agency.