US Bridges

Mo 59 S over Beaver Spr

Fair

McDonald County, Missouri · S 12 T 22 N R 33 W · Structure no. 4984

Built
1928
97 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
75 ft
2 main spans
Daily traffic
5,846
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 59 S over Beaver Spr is a concrete tee beam carrying Mo 59 S over Beaver Spr in McDonald County, Missouri. It was built in 1928, so it is 97 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.

It carries about 5,846 vehicles a day, roughly 8% of them trucks, projected to reach 12,277 by 2044. The structure is 75 ft (22.9 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesMo 59 S
CrossesBeaver Spr
LocationS 12 T 22 N R 33 W
RouteState Highway 59
CountyMcDonald County
StateMissouri
Coordinates36.65213, -94.44255
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length75 ft (22.9 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,846 (2024)
Projected traffic12,277 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$666,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 59 S over Beaver Spr built?

It was built in 1928, making it 97 years old in 2025.

What condition is Mo 59 S over Beaver Spr 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 Mo 59 S over Beaver Spr carry?

About 5,846 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Mo 59 S over Beaver Spr?

The structure is 75 ft (22.9 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns Mo 59 S over Beaver Spr?

It is owned by the State Highway Agency.