US Bridges

US 136 E over Weldon Fk of Grand

Fair

Mercer County, Missouri · S 28 T 65 N R 24 W · Structure no. 2284

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
585 ft
7 main spans
Daily traffic
1,917
2024 count
Owner
State
State Highway Agency

About this bridge

US 136 E over Weldon Fk of Grand is a steel continuous stringer/multi-beam or girder carrying US 136 E over Weldon Fk of Grand in Mercer County, Missouri. It was built in 1971, so it is 54 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 1,917 vehicles a day, roughly 16% of them trucks, projected to reach 2,492 by 2044. The structure is 585 ft (178.3 m) long and 47 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

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CarriesUS 136 E
CrossesWeldon Fk of Grand
LocationS 28 T 65 N R 24 W
RouteU.S. Route 136
CountyMercer County
StateMissouri
Coordinates40.40103, -93.60289
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length585 ft (178.3 m)
Longest span85 ft (25.9 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,917 (2024)
Projected traffic2,492 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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 US 136 E over Weldon Fk of Grand built?

It was built in 1971, making it 54 years old in 2025.

What condition is US 136 E over Weldon Fk of Grand 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 May 2023.

How much traffic does US 136 E over Weldon Fk of Grand carry?

About 1,917 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 136 E over Weldon Fk of Grand?

The structure is 585 ft (178.3 m) long with a longest span of 85 ft (25.9 m) and a deck 47 ft wide.

Who owns US 136 E over Weldon Fk of Grand?

It is owned by the State Highway Agency.