US Bridges

County RD 319 over Drain Dtch No 29

PoorClosed to traffic

Mississippi County, Missouri · S 15 T 25 N R 17 E · Structure no. 14607

Built
1965
60 years old
Condition
Poor
inspected December 2021
Type
Truss - Thru
Steel
Length
78 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 319 over Drain Dtch No 29 is a steel truss - thru carrying County RD 319 over Drain Dtch No 29 in Mississippi County, Missouri. It was built in 1965, so it is 60 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 13 by 2044. The structure is 78 ft (23.8 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD 319
CrossesDrain Dtch No 29
LocationS 15 T 25 N R 17 E
RouteCounty Highway 71
Coordinates36.81402, -89.20014
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2021
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length78 ft (23.8 m)
Longest span78 ft (23.8 m)
Deck width21 ft (6.3 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic13 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$583,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 319 over Drain Dtch No 29 built?

It was built in 1965, making it 60 years old in 2025.

What condition is County RD 319 over Drain Dtch No 29 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2021.

How much traffic does County RD 319 over Drain Dtch No 29 carry?

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

How long is County RD 319 over Drain Dtch No 29?

The structure is 78 ft (23.8 m) long with a longest span of 78 ft (23.8 m) and a deck 21 ft wide.

Who owns County RD 319 over Drain Dtch No 29?

It is owned by the County Highway Agency.