US Bridges

Newport RD over Shady Grove CR

GoodPosted for load

St. Louis County, Missouri · S 1953 T 45 N R 6 E · Structure no. 24012

Built
1965
60 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
5,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Newport RD over Shady Grove CR is a concrete continuous culvert carrying Newport RD over Shady Grove CR in St. Louis County, Missouri. It was built in 1965, so it is 60 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 5,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,750 by 2043. The structure is 27 ft (8.2 m) long and 50 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesNewport RD
CrossesShady Grove CR
LocationS 1953 T 45 N R 6 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.6, -90.35456
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadOther
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width50 ft (15.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic6,750 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$153,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Newport RD over Shady Grove CR built?

It was built in 1965, making it 60 years old in 2025.

What condition is Newport RD over Shady Grove CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Newport RD over Shady Grove CR carry?

About 5,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Newport RD over Shady Grove CR?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 50 ft wide.

Who owns Newport RD over Shady Grove CR?

It is owned by the City or Municipal Highway Agency.