US Bridges

T 27 over Upper Iowa River

Good

Mower County, Minnesota · 0.4 MI N of JCT Csah 11 · Structure no. 50J59

Built
2003
22 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
42 ft
3 main spans
Daily traffic
50
2002 count
Owner
County
County Highway Agency

About this bridge

T 27 over Upper Iowa River is a concrete culvert carrying T 27 over Upper Iowa River in Mower County, Minnesota. It was built in 2003, so it is 22 years old, younger 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 27
CrossesUpper Iowa River
Location0.4 MI N of JCT Csah 11
RouteCounty Highway 27
Coordinates43.56205, -92.5889
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length42 ft (12.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2002)
Projected traffic50 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

OwnerCounty Highway Agency
Maintained byCounty 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 27 over Upper Iowa River built?

It was built in 2003, making it 22 years old in 2025.

What condition is T 27 over Upper Iowa River 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 August 2024.

How much traffic does T 27 over Upper Iowa River carry?

About 50 vehicles per day (2002 count).

How long is T 27 over Upper Iowa River?

The structure is 42 ft (12.8 m) long with a longest span of 12 ft (3.7 m).

Who owns T 27 over Upper Iowa River?

It is owned by the County Highway Agency.