US Bridges

Bern ST over Airport Reservoir

Fair

Platte County, Missouri · S 22 T 52 N R 34 W · Structure no. 25367

Built
1972
53 years old, rebuilt 2007
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
3,289
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bern ST over Airport Reservoir is a prestressed concrete stringer/multi-beam or girder carrying Bern ST over Airport Reservoir in Platte County, Missouri. It was built in 1972 and reconstructed in 2007, so it is 53 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 6 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 3,289 vehicles a day, roughly 38% of them trucks, projected to reach 6,249 by 2044. The structure is 42 ft (12.7 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBern ST
CrossesAirport Reservoir
LocationS 22 T 52 N R 34 W
RouteCity Street 0
CountyPlatte County
StateMissouri
Coordinates39.31043, -94.70956
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.3 US tons
Inventory rating52.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.7 m)
Longest span38 ft (11.5 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,289 (2024)
Projected traffic6,249 by 2044
Trucks38%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bern ST over Airport Reservoir built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2007.

What condition is Bern ST over Airport Reservoir 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 April 2024.

How much traffic does Bern ST over Airport Reservoir carry?

About 3,289 vehicles per day (2024 count), of which roughly 38% are trucks.

How long is Bern ST over Airport Reservoir?

The structure is 42 ft (12.7 m) long with a longest span of 38 ft (11.5 m) and a deck 34 ft wide.

Who owns Bern ST over Airport Reservoir?

It is owned by the City or Municipal Highway Agency.