US Bridges

51st ST over UP RR

PoorPosted for load

Jackson County, Missouri · S 35 T 49 N R 32 W · Structure no. 25458

Built
1946
79 years old
Condition
Poor
inspected March 2024
Type
Slab
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
3,000
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

51st ST over UP RR is a concrete continuous slab carrying 51st ST over UP RR in Jackson County, Missouri. It was built in 1946, so it is 79 years old, older 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. Its operating status is: posted for load restriction.

It carries about 3,000 vehicles a day, roughly 2% of them trucks, projected to reach 3,900 by 2044. The structure is 88 ft (26.8 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries51st ST
CrossesUP RR
LocationS 35 T 49 N R 32 W
RouteCity Street 222
CountyJackson County
StateMissouri
Coordinates39.02847, -94.41986
Functional classUrban Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length88 ft (26.8 m)
Longest span34 ft (10.4 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2024)
Projected traffic3,900 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 51st ST over UP RR built?

It was built in 1946, making it 79 years old in 2025.

What condition is 51st ST over UP RR 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 March 2024.

How much traffic does 51st ST over UP RR carry?

About 3,000 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is 51st ST over UP RR?

The structure is 88 ft (26.8 m) long with a longest span of 34 ft (10.4 m) and a deck 25 ft wide.

Who owns 51st ST over UP RR?

It is owned by the City or Municipal Highway Agency.