US Bridges

N Hanley RD over Maline CR

FairPosted for load

St. Louis County, Missouri · S 15 T 46 N R 6 E · Structure no. 15551

Built
1974
51 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
92 ft
3 main spans
Daily traffic
7,675
2024 count
Owner
County
County Highway Agency

About this bridge

N Hanley RD over Maline CR is a concrete slab carrying N Hanley RD over Maline CR in St. Louis County, Missouri. It was built in 1974, so it is 51 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 7,675 vehicles a day, roughly 10% of them trucks, projected to reach 10,361 by 2044. The structure is 92 ft (28 m) long and 65 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesN Hanley RD
CrossesMaline CR
LocationS 15 T 46 N R 6 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.72977, -90.32434
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span34 ft (10.4 m)
Deck width65 ft (19.9 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,675 (2024)
Projected traffic10,361 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 N Hanley RD over Maline CR built?

It was built in 1974, making it 51 years old in 2025.

What condition is N Hanley RD over Maline CR 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 2024.

How much traffic does N Hanley RD over Maline CR carry?

About 7,675 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is N Hanley RD over Maline CR?

The structure is 92 ft (28 m) long with a longest span of 34 ft (10.4 m) and a deck 65 ft wide.

Who owns N Hanley RD over Maline CR?

It is owned by the County Highway Agency.