US Bridges

Keil RD over Saling CR

Fair

Boone County, Missouri · S 4 T 51 N R 12 W · Structure no. 18958

Built
1981
44 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Keil RD over Saling CR is a prestressed concrete tee beam carrying Keil RD over Saling CR in Boone County, Missouri. It was built in 1981, so it is 44 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 40 vehicles a day, roughly 4% of them trucks, projected to reach 76 by 2043. The structure is 51 ft (15.5 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKeil RD
CrossesSaling CR
LocationS 4 T 51 N R 12 W
RouteCounty Highway 205
CountyBoone County
StateMissouri
Coordinates39.23303, -92.27366
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating55.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic76 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Keil RD over Saling CR built?

It was built in 1981, making it 44 years old in 2025.

What condition is Keil RD over Saling 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 Keil RD over Saling CR carry?

About 40 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Keil RD over Saling CR?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 23 ft wide.

Who owns Keil RD over Saling CR?

It is owned by the County Highway Agency.