US Bridges

Rt Z E over Dark CR

PoorPosted for load

Randolph County, Missouri · S 4 T 54 N R 15 W · Structure no. 9672

Built
1947
78 years old
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
63 ft
1 main span
Daily traffic
122
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Z E over Dark CR is a steel truss - thru carrying Rt Z E over Dark CR in Randolph County, Missouri. It was built in 1947, so it is 78 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 4 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 122 vehicles a day, roughly 12% of them trucks, projected to reach 153 by 2044. The structure is 63 ft (19.3 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRt Z E
CrossesDark CR
LocationS 4 T 54 N R 15 W
RouteState Highway 0Z
Coordinates39.49951, -92.59118
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.8 US tons
Inventory rating16.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length63 ft (19.3 m)
Longest span63 ft (19.3 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2024)
Projected traffic153 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$694,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Z E over Dark CR built?

It was built in 1947, making it 78 years old in 2025.

What condition is Rt Z E over Dark CR 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 July 2024.

How much traffic does Rt Z E over Dark CR carry?

About 122 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Rt Z E over Dark CR?

The structure is 63 ft (19.3 m) long with a longest span of 63 ft (19.3 m) and a deck 19 ft wide.

Who owns Rt Z E over Dark CR?

It is owned by the State Highway Agency.