US Bridges

Duck Hill Road over I 55

Good

Montgomery County, Mississippi · 4.3 MI S SR 404 · Structure no. 41000550491904A

Built
1965
60 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
233 ft
1 main span
Daily traffic
610
2023 count
Owner
State
State Highway Agency

About this bridge

Duck Hill Road over I 55 is a concrete continuous box beam or girders - single or spread carrying Duck Hill Road over I 55 in Montgomery County, Mississippi. It was built in 1965, so it is 60 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 610 vehicles a day, roughly 8% of them trucks, projected to reach 610 by 2043. The structure is 233 ft (71 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDuck Hill Road
CrossesI 55
Location4.3 MI S SR 404
RouteCounty Highway 0
Coordinates33.57551, -89.77351
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating63.9 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 15
Structure length233 ft (71 m)
Longest span90 ft (27.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2023)
Projected traffic610 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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$447 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Duck Hill Road over I 55 built?

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

What condition is Duck Hill Road over I 55 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 2023.

How much traffic does Duck Hill Road over I 55 carry?

About 610 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Duck Hill Road over I 55?

The structure is 233 ft (71 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns Duck Hill Road over I 55?

It is owned by the State Highway Agency.