US Bridges

County Line Road over I 55

Fair

Hinds County, Mississippi · Hinds/Madison Cl · Structure no. 510005504510230

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
278 ft
4 main spans
Daily traffic
15,000
2023 count
Owner
State
State Highway Agency

About this bridge

County Line Road over I 55 is a prestressed concrete stringer/multi-beam or girder carrying County Line Road over I 55 in Hinds County, Mississippi. It was built in 1985, so it is 40 years old, older than the Mississippi average of 38.9 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 15,000 vehicles a day, roughly 4% of them trucks, projected to reach 15,000 by 2043. The structure is 278 ft (84.7 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Line Road
CrossesI 55
LocationHinds/Madison Cl
RouteCity Street 0
CountyHinds County
StateMississippi
Coordinates32.39979, -90.14562
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length278 ft (84.7 m)
Longest span101 ft (30.8 m)
Deck width84 ft (25.7 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic15,000 by 2043
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 County Line Road over I 55 built?

It was built in 1985, making it 40 years old in 2025.

What condition is County Line Road over I 55 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 County Line Road over I 55 carry?

About 15,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is County Line Road over I 55?

The structure is 278 ft (84.7 m) long with a longest span of 101 ft (30.8 m) and a deck 84 ft wide.

Who owns County Line Road over I 55?

It is owned by the State Highway Agency.