US Bridges

Scudder Ave E over Is 170

Fair

St. Louis County, Missouri · S 10 T 46 N R 6 E · Structure no. 2567

Built
1977
48 years old, rebuilt 1994
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
354 ft
4 main spans
Daily traffic
2,282
2024 count
Owner
State
State Highway Agency

About this bridge

Scudder Ave E over Is 170 is a steel continuous stringer/multi-beam or girder carrying Scudder Ave E over Is 170 in St. Louis County, Missouri. It was built in 1977 and reconstructed in 1994, so it is 48 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 2,282 vehicles a day, roughly 5% of them trucks, projected to reach 3,423 by 2044. The structure is 354 ft (107.9 m) long and 71 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesScudder Ave E
CrossesIs 170
LocationS 10 T 46 N R 6 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.7413, -90.33606
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionSeptember 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length354 ft (107.9 m)
Longest span120 ft (36.6 m)
Deck width71 ft (21.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,282 (2024)
Projected traffic3,423 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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 Scudder Ave E over Is 170 built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1994.

What condition is Scudder Ave E over Is 170 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 September 2024.

How much traffic does Scudder Ave E over Is 170 carry?

About 2,282 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Scudder Ave E over Is 170?

The structure is 354 ft (107.9 m) long with a longest span of 120 ft (36.6 m) and a deck 71 ft wide.

Who owns Scudder Ave E over Is 170?

It is owned by the State Highway Agency.