US Bridges

County RD 324 over Drain Dtch No 14

Good

Mississippi County, Missouri · S 20 T 26 N R 16 E · Structure no. 31653

Built
2002
23 years old
Condition
Good
inspected December 2023
Type
Other
Steel
Length
89 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 324 over Drain Dtch No 14 is a steel other carrying County RD 324 over Drain Dtch No 14 in Mississippi County, Missouri. It was built in 2002, so it is 23 years old, younger 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2044. The structure is 89 ft (27.2 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty RD 324
CrossesDrain Dtch No 14
LocationS 20 T 26 N R 16 E
RouteCounty Highway 324
Coordinates36.87715, -89.34679
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeOther
MaterialSteel
DeckOther
Main spans1
Design loadUnknown
Structure length89 ft (27.2 m)
Longest span55 ft (16.8 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic44 by 2044
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 324 over Drain Dtch No 14 built?

It was built in 2002, making it 23 years old in 2025.

What condition is County RD 324 over Drain Dtch No 14 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 December 2023.

How much traffic does County RD 324 over Drain Dtch No 14 carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 324 over Drain Dtch No 14?

The structure is 89 ft (27.2 m) long with a longest span of 55 ft (16.8 m) and a deck 21 ft wide.

Who owns County RD 324 over Drain Dtch No 14?

It is owned by the County Highway Agency.