US Bridges

Mo 45 S over Is 435

FairPosted for load

Platte County, Missouri · S 19 T 51 N R 34 W · Structure no. 2803

Built
1981
44 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
325 ft
2 main spans
Daily traffic
5,048
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 45 S over Is 435 is a steel continuous stringer/multi-beam or girder carrying Mo 45 S over Is 435 in Platte County, Missouri. It was built in 1981, so it is 44 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. Its operating status is: posted for load restriction.

It carries about 5,048 vehicles a day, roughly 12% of them trucks, projected to reach 9,591 by 2044. The structure is 325 ft (99.1 m) long and 93 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMo 45 S
CrossesIs 435
LocationS 19 T 51 N R 34 W
RouteState Highway 45
CountyPlatte County
StateMissouri
Coordinates39.22499, -94.76182
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span125 ft (38.1 m)
Deck width93 ft (28.3 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,048 (2024)
Projected traffic9,591 by 2044
Trucks12%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Mo 45 S over Is 435 built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mo 45 S over Is 435 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 February 2023.

How much traffic does Mo 45 S over Is 435 carry?

About 5,048 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 45 S over Is 435?

The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.1 m) and a deck 93 ft wide.

Who owns Mo 45 S over Is 435?

It is owned by the State Highway Agency.