US Bridges

North Mission Road over I 55

Fair

Montgomery County, Mississippi · 4.8 MI N US 82 · Structure no. 410005504918870

Built
1965
60 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
365 ft
2 main spans
Daily traffic
120
2023 count
Owner
State
State Highway Agency

About this bridge

North Mission Road over I 55 is a prestressed concrete stringer/multi-beam or girder carrying North Mission 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 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 120 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2043. The structure is 365 ft (111.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorth Mission Road
CrossesI 55
Location4.8 MI N US 82
RouteCounty Highway 0
CountyMontgomery County
StateMississippi
Coordinates33.55284, -89.77249
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.8 US tons
Inventory rating49.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadH 15
Structure length365 ft (111.3 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2023)
Projected traffic120 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$594 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was North Mission Road over I 55 built?

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

What condition is North Mission 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 January 2023.

How much traffic does North Mission Road over I 55 carry?

About 120 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is North Mission Road over I 55?

The structure is 365 ft (111.3 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns North Mission Road over I 55?

It is owned by the State Highway Agency.