US Bridges

County RD 329 over Mid Fabius Rvr

PoorPosted for load

Lewis County, Missouri · S 5 T 61 N R 8 W · Structure no. 17423

Built
1900
125 years old
Condition
Poor
inspected February 2024
Type
Truss - Thru
Steel
Length
130 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 329 over Mid Fabius Rvr is a steel truss - thru carrying County RD 329 over Mid Fabius Rvr in Lewis County, Missouri. It was built in 1900, so it is 125 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: posted for load restriction.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 31 by 2044. The structure is 130 ft (39.6 m) long and 12 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCounty RD 329
CrossesMid Fabius Rvr
LocationS 5 T 61 N R 8 W
RouteCounty Highway 152
CountyLewis County
StateMissouri
Coordinates40.12166, -91.80628
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
Deck7 GoodSome minor problems.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating18.8 US tons
Inventory rating10.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length130 ft (39.6 m)
Longest span100 ft (30.6 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic25 (2024)
Projected traffic31 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$893,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 329 over Mid Fabius Rvr built?

It was built in 1900, making it 125 years old in 2025.

What condition is County RD 329 over Mid Fabius Rvr 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 February 2024.

How much traffic does County RD 329 over Mid Fabius Rvr carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 329 over Mid Fabius Rvr?

The structure is 130 ft (39.6 m) long with a longest span of 100 ft (30.6 m) and a deck 12 ft wide.

Who owns County RD 329 over Mid Fabius Rvr?

It is owned by the County Highway Agency.