US Bridges

Mt Zion Road over I 55

Good

Lincoln County, Mississippi · 10.4 MI N US 84 · Structure no. 410005504304810

Built
1966
59 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
7 main spans
Daily traffic
400
2023 count
Owner
State
State Highway Agency

About this bridge

Mt Zion Road over I 55 is a prestressed concrete stringer/multi-beam or girder carrying Mt Zion Road over I 55 in Lincoln County, Mississippi. It was built in 1966, so it is 59 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 400 vehicles a day, roughly 10% of them trucks, projected to reach 410 by 2043. The structure is 420 ft (128 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMt Zion Road
CrossesI 55
Location10.4 MI N US 84
RouteCounty Highway 0
Coordinates31.69237, -90.4528
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.4 US tons
Inventory rating68 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length420 ft (128 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic410 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mt Zion Road over I 55 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Mt Zion 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 February 2025.

How much traffic does Mt Zion Road over I 55 carry?

About 400 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mt Zion Road over I 55?

The structure is 420 ft (128 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Mt Zion Road over I 55?

It is owned by the State Highway Agency.