US Bridges

Mo 740 E over Hinkson CR

FairPosted for load

Boone County, Missouri · S 19 T 48 N R 12 W · Structure no. 1037

Built
1966
59 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
3 main spans
Daily traffic
23,994
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 740 E over Hinkson CR is a steel continuous stringer/multi-beam or girder carrying Mo 740 E over Hinkson CR in Boone County, Missouri. It was built in 1966, so it is 59 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 23,994 vehicles a day, roughly 4% of them trucks, projected to reach 44,389 by 2044. The structure is 245 ft (74.7 m) long and 68 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMo 740 E
CrossesHinkson CR
LocationS 19 T 48 N R 12 W
RouteState Highway 740
CountyBoone County
StateMissouri
Coordinates38.9327, -92.31367
Functional classUrban Other Principal Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length245 ft (74.7 m)
Longest span96 ft (29.2 m)
Deck width68 ft (20.6 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,994 (2024)
Projected traffic44,389 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemYes

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 Mo 740 E over Hinkson CR built?

It was built in 1966, making it 59 years old in 2025.

What condition is Mo 740 E over Hinkson 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 September 2023.

How much traffic does Mo 740 E over Hinkson CR carry?

About 23,994 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Mo 740 E over Hinkson CR?

The structure is 245 ft (74.7 m) long with a longest span of 96 ft (29.2 m) and a deck 68 ft wide.

Who owns Mo 740 E over Hinkson CR?

It is owned by the State Highway Agency.