US Bridges

Is 49 N over Sugar Fk CR

Poor

McDonald County, Missouri · S 6 T 23 N R 32 W · Structure no. 11756

Built
1998
27 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
281 ft
3 main spans
Daily traffic
8,053
2024 count
Owner
State
State Highway Agency

About this bridge

Is 49 N over Sugar Fk CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Is 49 N over Sugar Fk CR in McDonald County, Missouri. It was built in 1998, so it is 27 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,053 vehicles a day, roughly 33% of them trucks, projected to reach 14,093 by 2044. The structure is 281 ft (85.6 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 49 N
CrossesSugar Fk CR
LocationS 6 T 23 N R 32 W
RouteInterstate 49
Coordinates36.75747, -94.42686
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.2 US tons
Inventory rating49.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length281 ft (85.6 m)
Longest span94 ft (28.6 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,053 (2024)
Projected traffic14,093 by 2044
Trucks33%
Lanes on structure2
Traffic directionOne-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 49 N over Sugar Fk CR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Is 49 N over Sugar Fk CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Is 49 N over Sugar Fk CR carry?

About 8,053 vehicles per day (2024 count), of which roughly 33% are trucks.

How long is Is 49 N over Sugar Fk CR?

The structure is 281 ft (85.6 m) long with a longest span of 94 ft (28.6 m) and a deck 41 ft wide.

Who owns Is 49 N over Sugar Fk CR?

It is owned by the State Highway Agency.