US Bridges

Parkwood RD over I - 459

Fair

Jefferson County, Alabama · I459 * Parkwood RD · Structure no. 012911

Built
1983
42 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
340 ft
4 main spans
Daily traffic
5,500
2024 count
Owner
State
State Highway Agency

About this bridge

Parkwood RD over I - 459 is a steel continuous stringer/multi-beam or girder carrying Parkwood RD over I - 459 in Jefferson County, Alabama. It was built in 1983, so it is 42 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 5,500 vehicles a day, roughly 1% of them trucks, projected to reach 6,800 by 2044. The structure is 340 ft (103.6 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesParkwood RD
CrossesI - 459
LocationI459 * Parkwood RD
RouteCounty Highway 0
CountyJefferson County
StateAlabama
Coordinates33.34208, -86.90219
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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating38.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length340 ft (103.6 m)
Longest span93 ft (28.3 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2024)
Projected traffic6,800 by 2044
Trucks1%
Lanes on structure2
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$3.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Parkwood RD over I - 459 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Parkwood RD over I - 459 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 Parkwood RD over I - 459 carry?

About 5,500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Parkwood RD over I - 459?

The structure is 340 ft (103.6 m) long with a longest span of 93 ft (28.3 m) and a deck 37 ft wide.

Who owns Parkwood RD over I - 459?

It is owned by the State Highway Agency.