US Bridges

Murdoch Ave E over Is 44

Fair

St. Louis County, Missouri · S 34 T 45 N R 6 E · Structure no. 1427

Built
1969
56 years old, rebuilt 1984
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
196 ft
3 main spans
Daily traffic
12,634
2024 count
Owner
State
State Highway Agency

About this bridge

Murdoch Ave E over Is 44 is a concrete continuous box beam or girders - single or spread carrying Murdoch Ave E over Is 44 in St. Louis County, 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.

It carries about 12,634 vehicles a day, roughly 5% of them trucks, projected to reach 17,688 by 2044. The structure is 196 ft (59.7 m) long and 58 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMurdoch Ave E
CrossesIs 44
LocationS 34 T 45 N R 6 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.59164, -90.33548
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80.4 US tons
Inventory rating48.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span82 ft (25 m)
Deck width58 ft (17.6 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,634 (2024)
Projected traffic17,688 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Murdoch Ave E over Is 44 built?

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

What condition is Murdoch Ave E over 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 June 2024.

How much traffic does Murdoch Ave E over Is 44 carry?

About 12,634 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Murdoch Ave E over Is 44?

The structure is 196 ft (59.7 m) long with a longest span of 82 ft (25 m) and a deck 58 ft wide.

Who owns Murdoch Ave E over Is 44?

It is owned by the State Highway Agency.