US Bridges

Spring ST over Benner Br

Fair

Platte County, Missouri · S 11 T 53 N R 36 W · Structure no. 30596

Built
2004
21 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
200
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Spring ST over Benner Br is a prestressed concrete stringer/multi-beam or girder carrying Spring ST over Benner Br in Platte County, Missouri. It was built in 2004, so it is 21 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.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 370 by 2044. The structure is 59 ft (18.1 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSpring ST
CrossesBenner Br
LocationS 11 T 53 N R 36 W
RouteCounty Highway 455
Coordinates39.41318, -94.9023
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating47.6 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length59 ft (18.1 m)
Longest span57 ft (17.4 m)
Deck width30 ft (9.1 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic370 by 2044
Trucks10%
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 Spring ST over Benner Br built?

It was built in 2004, making it 21 years old in 2025.

What condition is Spring ST over Benner Br 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 Spring ST over Benner Br carry?

About 200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Spring ST over Benner Br?

The structure is 59 ft (18.1 m) long with a longest span of 57 ft (17.4 m) and a deck 30 ft wide.

Who owns Spring ST over Benner Br?

It is owned by the City or Municipal Highway Agency.