US Bridges

Hillsdale Road over I 59

Good

Pearl River County, Mississippi · 9.1 MI N SR 26 · Structure no. 410005905503510

Built
1963
62 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
266 ft
2 main spans
Daily traffic
380
2023 count
Owner
State
State Highway Agency

About this bridge

Hillsdale Road over I 59 is a concrete continuous box beam or girders - single or spread carrying Hillsdale Road over I 59 in Pearl River County, Mississippi. It was built in 1963, so it is 62 years old, older than the Mississippi average of 38.9 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.

It carries about 380 vehicles a day, roughly 8% of them trucks, projected to reach 410 by 2043. The structure is 266 ft (81.1 m) long and 31 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesHillsdale Road
CrossesI 59
Location9.1 MI N SR 26
RouteCounty Highway 0
Coordinates30.92436, -89.45853
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.3 US tons
Inventory rating45.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length266 ft (81.1 m)
Longest span75 ft (22.9 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2023)
Projected traffic410 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed21.7 mi (35 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$495 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hillsdale Road over I 59 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Hillsdale Road over I 59 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 October 2023.

How much traffic does Hillsdale Road over I 59 carry?

About 380 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Hillsdale Road over I 59?

The structure is 266 ft (81.1 m) long with a longest span of 75 ft (22.9 m) and a deck 31 ft wide.

Who owns Hillsdale Road over I 59?

It is owned by the State Highway Agency.