US Bridges

Topping Ave S over Cst US 40 HWY

FairPosted for load

Jackson County, Missouri · S 14 T 49 N R 33 W · Structure no. 5785

Built
1933
92 years old
Condition
Fair
inspected March 2023
Type
Girder and Floorbeam System
Steel
Length
63 ft
1 main span
Daily traffic
4,066
2024 count
Owner
State
State Highway Agency

About this bridge

Topping Ave S over Cst US 40 HWY is a steel girder and floorbeam system carrying Topping Ave S over Cst US 40 HWY in Jackson County, Missouri. It was built in 1933, so it is 92 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. Its operating status is: posted for load restriction.

It carries about 4,066 vehicles a day, roughly 5% of them trucks, projected to reach 5,692 by 2044. The structure is 63 ft (19.2 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTopping Ave S
CrossesCst US 40 HWY
LocationS 14 T 49 N R 33 W
RouteCity Street 0
CountyJackson County
StateMissouri
Coordinates39.06813, -94.516
Functional classUrban Local

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.
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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating32.7 US tons
Inventory rating15.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span61 ft (18.6 m)
Deck width40 ft (12.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,066 (2024)
Projected traffic5,692 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$774,000 (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Topping Ave S over Cst US 40 HWY built?

It was built in 1933, making it 92 years old in 2025.

What condition is Topping Ave S over Cst US 40 HWY 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 March 2023.

How much traffic does Topping Ave S over Cst US 40 HWY carry?

About 4,066 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Topping Ave S over Cst US 40 HWY?

The structure is 63 ft (19.2 m) long with a longest span of 61 ft (18.6 m) and a deck 40 ft wide.

Who owns Topping Ave S over Cst US 40 HWY?

It is owned by the State Highway Agency.