US Bridges

Is 70 E over Sugar Br

Fair

Boone County, Missouri · S 10 T 48 N R 14 W · Structure no. 64

Built
1958
67 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
40,417
2024 count
Owner
State
State Highway Agency

About this bridge

Is 70 E over Sugar Br is a concrete continuous culvert carrying Is 70 E over Sugar Br in Boone County, Missouri. It was built in 1958, so it is 67 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 40,417 vehicles a day, roughly 24% of them trucks, projected to reach 66,688 by 2044. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 70 E
CrossesSugar Br
LocationS 10 T 48 N R 14 W
RouteInterstate 70
CountyBoone County
StateMissouri
Coordinates38.97295, -92.47705
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum 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 loadHS 20
Structure length30 ft (9.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,417 (2024)
Projected traffic66,688 by 2044
Trucks24%
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 Sugar Br built?

It was built in 1958, making it 67 years old in 2025.

What condition is Is 70 E over Sugar Br 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 Is 70 E over Sugar Br carry?

About 40,417 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Is 70 E over Sugar Br?

The structure is 30 ft (9.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Is 70 E over Sugar Br?

It is owned by the State Highway Agency.