US Bridges

Rt Z S over Ross Br

Fair

Worth County, Missouri · S 31 T 66 N R 31 W · Structure no. 7761

Built
1954
71 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
178
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Z S over Ross Br is a concrete continuous culvert carrying Rt Z S over Ross Br in Worth County, Missouri. It was built in 1954, so it is 71 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 178 vehicles a day, roughly 10% of them trucks, projected to reach 231 by 2044. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesRt Z S
CrossesRoss Br
LocationS 31 T 66 N R 31 W
RouteState Highway 0Z
CountyWorth County
StateMissouri
Coordinates40.47779, -94.46053
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic178 (2024)
Projected traffic231 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Z S over Ross Br built?

It was built in 1954, making it 71 years old in 2025.

What condition is Rt Z S over Ross Br in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Rt Z S over Ross Br carry?

About 178 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Z S over Ross Br?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Rt Z S over Ross Br?

It is owned by the State Highway Agency.