US Bridges

T 18 over Rice Creek

Fair

Blue Earth County, Minnesota · 0.6 MI N of JCT Csah 1 · Structure no. 07559

Built
1981
44 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
24
1969 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 18 over Rice Creek is a concrete continuous slab carrying T 18 over Rice Creek in Blue Earth County, Minnesota. It was built in 1981, so it is 44 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 24 vehicles a day, projected to reach 24 by 2029. The structure is 99 ft (30.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT 18
CrossesRice Creek
Location0.6 MI N of JCT Csah 1
RouteCounty Highway 18
Coordinates43.8728, -94.05776
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.5 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (1969)
Projected traffic24 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

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 18 over Rice Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is T 18 over Rice 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 November 2024.

How much traffic does T 18 over Rice Creek carry?

About 24 vehicles per day (1969 count).

How long is T 18 over Rice Creek?

The structure is 99 ft (30.2 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns T 18 over Rice Creek?

It is owned by the Town or Township Highway Agency.