US Bridges

US 63 S over Bu 63

Fair

Howell County, Missouri · S 17 T 24 N R 8 W · Structure no. 4326

Built
1995
30 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
198 ft
3 main spans
Daily traffic
12,584
2024 count
Owner
State
State Highway Agency

About this bridge

US 63 S over Bu 63 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 63 S over Bu 63 in Howell County, Missouri. It was built in 1995, so it is 30 years old, younger 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 12,584 vehicles a day, roughly 21% of them trucks, projected to reach 23,910 by 2044. The structure is 198 ft (60.4 m) long and 77 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 63 S
CrossesBu 63
LocationS 17 T 24 N R 8 W
RouteU.S. Route 63
Coordinates36.75384, -91.87352
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating60.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length198 ft (60.4 m)
Longest span94 ft (28.7 m)
Deck width77 ft (23.4 m)
Roadway width74 ft (22.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,584 (2024)
Projected traffic23,910 by 2044
Trucks21%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 63 S over Bu 63 built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 63 S over Bu 63 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 December 2024.

How much traffic does US 63 S over Bu 63 carry?

About 12,584 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is US 63 S over Bu 63?

The structure is 198 ft (60.4 m) long with a longest span of 94 ft (28.7 m) and a deck 77 ft wide.

Who owns US 63 S over Bu 63?

It is owned by the State Highway Agency.