US Bridges

T 108 over Stream

Good

Olmsted County, Minnesota · 0.4 MI N JCT CR 137 on · Structure no. R0066

Built
1984
41 years old
Condition
Good
inspected November 2022
Type
Culvert
Concrete
Length
39 ft
2 main spans
Daily traffic
15
1986 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 108 over Stream is a concrete culvert carrying T 108 over Stream in Olmsted County, Minnesota. It was built in 1984, so it is 41 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 15 vehicles a day, projected to reach 15 by 2029. The structure is 39 ft (11.8 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT 108
CrossesStream
Location0.4 MI N JCT CR 137 on
RouteCounty Highway 108
Coordinates43.91079, -92.21375
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to 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 length39 ft (11.8 m)
Longest span14 ft (4.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1986)
Projected traffic15 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 108 over Stream built?

It was built in 1984, making it 41 years old in 2025.

What condition is T 108 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 November 2022.

How much traffic does T 108 over Stream carry?

About 15 vehicles per day (1986 count).

How long is T 108 over Stream?

The structure is 39 ft (11.8 m) long with a longest span of 14 ft (4.4 m) and a deck 24 ft wide.

Who owns T 108 over Stream?

It is owned by the Town or Township Highway Agency.