US Bridges

Or 70 E over Whetstone Creek

FairPosted for load

Callaway County, Missouri · S 14 T 48 N R 8 W · Structure no. 33312

Built
1923
102 years old, rebuilt 1936
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
32 ft
1 main span
Daily traffic
632
2024 count
Owner
State
State Highway Agency

About this bridge

Or 70 E over Whetstone Creek is a concrete continuous tee beam carrying Or 70 E over Whetstone Creek in Callaway County, Missouri. It was built in 1923 and reconstructed in 1936, so it is 102 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 632 vehicles a day, roughly 9% of them trucks, projected to reach 980 by 2044. The structure is 32 ft (9.9 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOr 70 E
CrossesWhetstone Creek
LocationS 14 T 48 N R 8 W
RouteState Highway 70
Coordinates38.9272, -91.78034
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.9 m)
Longest span30 ft (9.1 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic632 (2024)
Projected traffic980 by 2044
Trucks9%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Or 70 E over Whetstone Creek built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1936.

What condition is Or 70 E over Whetstone Creek 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 Or 70 E over Whetstone Creek carry?

About 632 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Or 70 E over Whetstone Creek?

The structure is 32 ft (9.9 m) long with a longest span of 30 ft (9.1 m) and a deck 22 ft wide.

Who owns Or 70 E over Whetstone Creek?

It is owned by the State Highway Agency.