US Bridges

Is 70 E over Whetstone CR

Fair

Callaway County, Missouri · S 14 T 48 N R 8 W · Structure no. 91

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
40,377
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 E over Whetstone CR is a concrete continuous culvert carrying Is 70 E over Whetstone CR in Callaway County, Missouri. It was built in 1963, so it is 62 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 40,377 vehicles a day, roughly 36% of them trucks, projected to reach 74,697 by 2044. The structure is 32 ft (9.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 70 E
CrossesWhetstone CR
LocationS 14 T 48 N R 8 W
RouteInterstate 70
CountyCallaway County
StateMissouri
Coordinates38.92668, -91.77996
Functional classRural Principal Arterial - Interstate

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length32 ft (9.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,377 (2024)
Projected traffic74,697 by 2044
Trucks36%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 70 E over Whetstone CR built?

It was built in 1963, making it 62 years old in 2025.

What condition is Is 70 E over Whetstone 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 October 2024.

How much traffic does Is 70 E over Whetstone CR carry?

About 40,377 vehicles per day (2024 count), of which roughly 36% are trucks.

How long is Is 70 E over Whetstone CR?

The structure is 32 ft (9.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Is 70 E over Whetstone CR?

It is owned by the State Highway Agency.