US Bridges

Mo 51 S over Zanner Br

Fair

Perry County, Missouri · S 34 T 35 N R 10 E · Structure no. 5494

Built
1932
93 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
2,333
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 51 S over Zanner Br is a concrete continuous culvert carrying Mo 51 S over Zanner Br in Perry County, Missouri. It was built in 1932, so it is 93 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 2,333 vehicles a day, roughly 12% of them trucks, projected to reach 3,150 by 2044. The structure is 21 ft (6.5 m) long and 40 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 51 S
CrossesZanner Br
LocationS 34 T 35 N R 10 E
RouteState Highway 51
CountyPerry County
StateMissouri
Coordinates37.68981, -89.91144
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.5 m)
Longest span8 ft (2.4 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,333 (2024)
Projected traffic3,150 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Mo 51 S over Zanner Br built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 51 S over Zanner 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 October 2023.

How much traffic does Mo 51 S over Zanner Br carry?

About 2,333 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 51 S over Zanner Br?

The structure is 21 ft (6.5 m) long with a longest span of 8 ft (2.4 m) and a deck 40 ft wide.

Who owns Mo 51 S over Zanner Br?

It is owned by the State Highway Agency.