US Bridges

Cynthia Road over Ntp & NE Outer Ramp

Fair

Hinds County, Mississippi · 3P Project Section · Structure no. 5570470P0000000

Built
1999
26 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
340 ft
3 main spans
Daily traffic
215
2019 count
Owner
Federal
National Park Service

About this bridge

Cynthia Road over Ntp & NE Outer Ramp is a prestressed concrete continuous box beam or girders - single or spread carrying Cynthia Road over Ntp & NE Outer Ramp in Hinds County, Mississippi. It was built in 1999, so it is 26 years old, younger 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 215 vehicles a day, projected to reach 235 by 2039. The structure is 340 ft (103.5 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesCynthia Road
CrossesNtp & NE Outer Ramp
Location3P Project Section
RouteFederal Lands Road 0
CountyHinds County
StateMississippi
Coordinates32.38581, -90.25781
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length340 ft (103.5 m)
Longest span139 ft (42.5 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic215 (2019)
Projected traffic235 by 2039
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$45,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cynthia Road over Ntp & NE Outer Ramp built?

It was built in 1999, making it 26 years old in 2025.

What condition is Cynthia Road over Ntp & NE Outer Ramp 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 March 2024.

How much traffic does Cynthia Road over Ntp & NE Outer Ramp carry?

About 215 vehicles per day (2019 count).

How long is Cynthia Road over Ntp & NE Outer Ramp?

The structure is 340 ft (103.5 m) long with a longest span of 139 ft (42.5 m) and a deck 36 ft wide.

Who owns Cynthia Road over Ntp & NE Outer Ramp?

It is owned by the National Park Service.