US Bridges

500 N Egan Ave over Madison Ck

Fair

Lake County, South Dakota · Egan Ave N - Madison · Structure no. 000000040128129

Built
1993
32 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
3,190
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

500 N Egan Ave over Madison Ck is a concrete continuous culvert carrying 500 N Egan Ave over Madison Ck in Lake County, South Dakota. It was built in 1993, so it is 32 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 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 3,190 vehicles a day, roughly 1% of them trucks, projected to reach 3,190 by 2032. The structure is 38 ft (11.6 m) long.

Carries500 N Egan Ave
CrossesMadison Ck
LocationEgan Ave N - Madison
RouteCity Street 0
Coordinates44.00926, -97.11394
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length38 ft (11.6 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,190 (2022)
Projected traffic3,190 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 500 N Egan Ave over Madison Ck built?

It was built in 1993, making it 32 years old in 2025.

What condition is 500 N Egan Ave over Madison 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 August 2023.

How much traffic does 500 N Egan Ave over Madison Ck carry?

About 3,190 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 500 N Egan Ave over Madison Ck?

The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.6 m).

Who owns 500 N Egan Ave over Madison Ck?

It is owned by the City or Municipal Highway Agency.