US Bridges

Kroeger RD over Silver Fk CR

Fair

Boone County, Missouri · S 4 T 50 N R 11 W · Structure no. 19902

Built
1970
55 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

Kroeger RD over Silver Fk CR is a steel stringer/multi-beam or girder carrying Kroeger RD over Silver Fk CR in Boone County, Missouri. It was built in 1970, so it is 55 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 70 vehicles a day, roughly 5% of them trucks, projected to reach 133 by 2043. The structure is 33 ft (10.1 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesKroeger RD
CrossesSilver Fk CR
LocationS 4 T 50 N R 11 W
RouteCounty Highway 239
CountyBoone County
StateMissouri
Coordinates39.14936, -92.15067
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41.7 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length33 ft (10.1 m)
Longest span29 ft (8.8 m)
Deck width22 ft (6.6 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic133 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local 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 Kroeger RD over Silver Fk CR built?

It was built in 1970, making it 55 years old in 2025.

What condition is Kroeger RD over Silver Fk 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 December 2024.

How much traffic does Kroeger RD over Silver Fk CR carry?

About 70 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Kroeger RD over Silver Fk CR?

The structure is 33 ft (10.1 m) long with a longest span of 29 ft (8.8 m) and a deck 22 ft wide.

Who owns Kroeger RD over Silver Fk CR?

It is owned by the County Highway Agency and maintained by the Other Local Agency.