US Bridges

Norway Street over Silver Ck

Fair

Minnehaha County, South Dakota · 0.6E & 2.5S Baltic · Structure no. 000000050206085

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Channel Beam
Concrete
Length
38 ft
1 main span
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

Norway Street over Silver Ck is a concrete channel beam carrying Norway Street over Silver Ck in Minnehaha County, South Dakota. It was built in 1970, so it is 55 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 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 21 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2037. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNorway Street
CrossesSilver Ck
Location0.6E & 2.5S Baltic
RouteCounty Highway 0
Coordinates43.72495, -96.72119
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width25 ft (7.7 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic25 by 2037
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$448,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Norway Street over Silver Ck built?

It was built in 1970, making it 55 years old in 2025.

What condition is Norway Street over Silver Ck 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 July 2023.

How much traffic does Norway Street over Silver Ck carry?

About 21 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Norway Street over Silver Ck?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 25 ft wide.

Who owns Norway Street over Silver Ck?

It is owned by the County Highway Agency.