US Bridges

Melgaard Road over Moccasin Ck

Good

Brown County, South Dakota · Melgaard RD(18th)ABERDEEN · Structure no. 000000007119340

Built
1990
35 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
66 ft
6 main spans
Daily traffic
3,600
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Melgaard Road over Moccasin Ck is a concrete continuous culvert carrying Melgaard Road over Moccasin Ck in Brown County, South Dakota. It was built in 1990, so it is 35 years old, younger 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 3,600 vehicles a day, roughly 1% of them trucks, projected to reach 3,600 by 2032. The structure is 66 ft (20 m) long and 60 ft wide.

CarriesMelgaard Road
CrossesMoccasin Ck
LocationMelgaard RD(18th)ABERDEEN
RouteCity Street 2342
Coordinates45.44472, -98.47533
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length66 ft (20 m)
Longest span10 ft (3.2 m)
Deck width60 ft (18.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic3,600 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Melgaard Road over Moccasin Ck built?

It was built in 1990, making it 35 years old in 2025.

What condition is Melgaard Road over Moccasin 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 October 2024.

How much traffic does Melgaard Road over Moccasin Ck carry?

About 3,600 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Melgaard Road over Moccasin Ck?

The structure is 66 ft (20 m) long with a longest span of 10 ft (3.2 m) and a deck 60 ft wide.

Who owns Melgaard Road over Moccasin Ck?

It is owned by the City or Municipal Highway Agency.