US Bridges

230th Street over Morris Ck

Poor

Jerauld County, South Dakota · 1S & 2.6E Lane · Structure no. 000000037282100

Built
1937
88 years old
Condition
Poor
inspected August 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

230th Street over Morris Ck is a concrete continuous culvert carrying 230th Street over Morris Ck in Jerauld County, South Dakota. It was built in 1937, so it is 88 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20 vehicles a day, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 22 ft (6.8 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries230th Street
CrossesMorris Ck
Location1S & 2.6E Lane
RouteCounty Highway 0
Coordinates44.0536, -98.37067
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2032
Trucks2%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$80,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 230th Street over Morris Ck built?

It was built in 1937, making it 88 years old in 2025.

What condition is 230th Street over Morris Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does 230th Street over Morris Ck carry?

About 20 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 230th Street over Morris Ck?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns 230th Street over Morris Ck?

It is owned by the County Highway Agency.