US Bridges

County RD 522 over Br of Durgens CR

Fair

Lewis County, Missouri · S 1 T 61 N R 7 W · Structure no. 18267

Built
1988
37 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
70
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 522 over Br of Durgens CR is a steel stringer/multi-beam or girder carrying County RD 522 over Br of Durgens CR in Lewis County, Missouri. It was built in 1988, so it is 37 years old, younger 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 88 by 2044. The structure is 39 ft (11.9 m) long and 18 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCounty RD 522
CrossesBr of Durgens CR
LocationS 1 T 61 N R 7 W
RouteCounty Highway 179
CountyLewis County
StateMissouri
Coordinates40.10619, -91.63203
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2024)
Projected traffic88 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 522 over Br of Durgens CR built?

It was built in 1988, making it 37 years old in 2025.

What condition is County RD 522 over Br of Durgens CR 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 February 2024.

How much traffic does County RD 522 over Br of Durgens CR carry?

About 70 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 522 over Br of Durgens CR?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 18 ft wide.

Who owns County RD 522 over Br of Durgens CR?

It is owned by the County Highway Agency.