US Bridges

County RD 524 over Blue Dtch

Good

Scott County, Missouri · S 23 T 27 N R 14 E · Structure no. 15751

Built
1969
56 years old, rebuilt 1984
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 524 over Blue Dtch is a steel stringer/multi-beam or girder carrying County RD 524 over Blue Dtch in Scott County, Missouri. It was built in 1969 and reconstructed in 1984, so it is 56 years old, older than the Missouri average of 45.1 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 84 by 2043. The structure is 44 ft (13.4 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCounty RD 524
CrossesBlue Dtch
LocationS 23 T 27 N R 14 E
RouteCounty Highway 98
Coordinates36.97213, -89.50416
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.6 US tons
Inventory rating27.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length44 ft (13.4 m)
Longest span43 ft (13.1 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic84 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 524 over Blue Dtch built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1984.

What condition is County RD 524 over Blue Dtch 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 January 2025.

How much traffic does County RD 524 over Blue Dtch carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 524 over Blue Dtch?

The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13.1 m) and a deck 25 ft wide.

Who owns County RD 524 over Blue Dtch?

It is owned by the County Highway Agency.