US Bridges

I090 over Morris Ck

Good

Meade County, South Dakota · 0.2 SE Tilford Interch · Structure no. 000000047070511

Built
1956
69 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete Continuous
Length
29 ft
3 main spans
Daily traffic
18,380
2023 count
Owner
State
State Highway Agency

About this bridge

I090 over Morris Ck is a concrete continuous culvert carrying I090 over Morris Ck in Meade County, South Dakota. It was built in 1956, so it is 69 years old, older than the South Dakota average of 48.9 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 18,380 vehicles a day, roughly 12% of them trucks, projected to reach 23,288 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI090
CrossesMorris Ck
Location0.2 SE Tilford Interch
RouteInterstate 90
Coordinates44.2983, -103.43318
Functional classRural Principal Arterial - Interstate

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 inspectionMarch 2022
Inspection intervalevery 48 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 rating110.1 US tons
Inventory rating77.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,380 (2023)
Projected traffic23,288 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I090 over Morris Ck built?

It was built in 1956, making it 69 years old in 2025.

What condition is I090 over Morris Ck 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 March 2022.

How much traffic does I090 over Morris Ck carry?

About 18,380 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is I090 over Morris Ck?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.8 m).

Who owns I090 over Morris Ck?

It is owned by the State Highway Agency.