US Bridges

Rt N S over Dixon Br

Fair

Montgomery County, Missouri · S 20 T 48 N R 6 W · Structure no. 9617

Built
1937
88 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
21
2024 count
Owner
State
State Highway Agency

About this bridge

Rt N S over Dixon Br is a concrete continuous culvert carrying Rt N S over Dixon Br in Montgomery County, Missouri. It was built in 1937, so it is 88 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 6 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 21 vehicles a day, roughly 9% of them trucks, projected to reach 30 by 2044. The structure is 20 ft (6.2 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRt N S
CrossesDixon Br
LocationS 20 T 48 N R 6 W
RouteState Highway 0N
Coordinates38.91604, -91.61005
Functional classRural Minor 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2024)
Projected traffic30 by 2044
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt N S over Dixon Br built?

It was built in 1937, making it 88 years old in 2025.

What condition is Rt N S over Dixon 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 September 2024.

How much traffic does Rt N S over Dixon Br carry?

About 21 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Rt N S over Dixon Br?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns Rt N S over Dixon Br?

It is owned by the State Highway Agency.