US Bridges

Jj Kelley Memorial over Is 270 Rp IS270W to MO1

Fair

St. Louis County, Missouri · S 27 T 45 N R 5 E · Structure no. 3945

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
326 ft
2 main spans
Daily traffic
3,900
2024 count
Owner
State
State Highway Agency

About this bridge

Jj Kelley Memorial over Is 270 Rp IS270W to MO1 is a steel continuous stringer/multi-beam or girder carrying Jj Kelley Memorial over Is 270 Rp IS270W to MO1 in St. Louis County, Missouri. It was built in 1989, so it is 36 years old, younger 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 3,900 vehicles a day, roughly 5% of them trucks, projected to reach 5,850 by 2044. The structure is 326 ft (99.4 m) long and 60 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesJj Kelley Memorial
CrossesIs 270 Rp IS270W to MO1
LocationS 27 T 45 N R 5 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.60585, -90.45088
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.4 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length326 ft (99.4 m)
Longest span169 ft (51.6 m)
Deck width60 ft (18.2 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2024)
Projected traffic5,850 by 2044
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 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 Jj Kelley Memorial over Is 270 Rp IS270W to MO1 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Jj Kelley Memorial over Is 270 Rp IS270W to MO1 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 Jj Kelley Memorial over Is 270 Rp IS270W to MO1 carry?

About 3,900 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Jj Kelley Memorial over Is 270 Rp IS270W to MO1?

The structure is 326 ft (99.4 m) long with a longest span of 169 ft (51.6 m) and a deck 60 ft wide.

Who owns Jj Kelley Memorial over Is 270 Rp IS270W to MO1?

It is owned by the State Highway Agency.