US Bridges

Rt Nn E over Fox Rvr

Fair

Clark County, Missouri · S 22 T 66 N R 8 W · Structure no. 7737

Built
1954
71 years old, rebuilt 2010
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
3 main spans
Daily traffic
143
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Nn E over Fox Rvr is a steel continuous stringer/multi-beam or girder carrying Rt Nn E over Fox Rvr in Clark County, Missouri. It was built in 1954 and reconstructed in 2010, 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 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 143 vehicles a day, roughly 9% of them trucks, projected to reach 207 by 2044. The structure is 268 ft (81.7 m) long and 25 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesRt Nn E
CrossesFox Rvr
LocationS 22 T 66 N R 8 W
RouteState Highway 0NN
CountyClark County
StateMissouri
Coordinates40.51005, -91.76861
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 10
Structure length268 ft (81.7 m)
Longest span75 ft (22.9 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic143 (2024)
Projected traffic207 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 Nn E over Fox Rvr built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2010.

What condition is Rt Nn E over Fox Rvr 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 November 2023.

How much traffic does Rt Nn E over Fox Rvr carry?

About 143 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Rt Nn E over Fox Rvr?

The structure is 268 ft (81.7 m) long with a longest span of 75 ft (22.9 m) and a deck 25 ft wide.

Who owns Rt Nn E over Fox Rvr?

It is owned by the State Highway Agency.