US Bridges

Macklind Ave S over Is 44 Is 44

FairPosted for load

St. Louis city, Missouri · S 19 T 45 N R 7 E · Structure no. 2004

Built
1969
56 years old, rebuilt 1984
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
183 ft
3 main spans
Daily traffic
4,122
2024 count
Owner
State
State Highway Agency

About this bridge

Macklind Ave S over Is 44 Is 44 is a concrete continuous slab carrying Macklind Ave S over Is 44 Is 44 in St. Louis city, Missouri. It was built in 1969 and reconstructed in 1984, so it is 56 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 4,122 vehicles a day, roughly 5% of them trucks, projected to reach 6,183 by 2044. The structure is 183 ft (55.8 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMacklind Ave S
CrossesIs 44 Is 44
LocationS 19 T 45 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.61915, -90.27667
Functional classUrban Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span74 ft (22.6 m)
Deck width48 ft (14.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,122 (2024)
Projected traffic6,183 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Macklind Ave S over Is 44 Is 44 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1984.

What condition is Macklind Ave S over Is 44 Is 44 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 August 2023.

How much traffic does Macklind Ave S over Is 44 Is 44 carry?

About 4,122 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Macklind Ave S over Is 44 Is 44?

The structure is 183 ft (55.8 m) long with a longest span of 74 ft (22.6 m) and a deck 48 ft wide.

Who owns Macklind Ave S over Is 44 Is 44?

It is owned by the State Highway Agency.