US Bridges

Ramp a (i 20) over Terry RD

Good

Hinds County, Mississippi · 3.5 MI E SR 18 · Structure no. 17000200250446C

Built
1966
59 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
252 ft
4 main spans
Daily traffic
8,500
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp a (i 20) over Terry RD is a prestressed concrete stringer/multi-beam or girder carrying Ramp a (i 20) over Terry RD in Hinds 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 8,500 vehicles a day, roughly 18% of them trucks, projected to reach 9,300 by 2043. The structure is 252 ft (76.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp a (i 20)
CrossesTerry RD
Location3.5 MI E SR 18
RouteInterstate 20
Coordinates32.27953, -90.21299
Functional classUrban Principal Arterial - Interstate

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating31.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length252 ft (76.8 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2023)
Projected traffic9,300 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$287 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp a (i 20) over Terry RD built?

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

What condition is Ramp a (i 20) over Terry RD 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 August 2024.

How much traffic does Ramp a (i 20) over Terry RD carry?

About 8,500 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Ramp a (i 20) over Terry RD?

The structure is 252 ft (76.8 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns Ramp a (i 20) over Terry RD?

It is owned by the State Highway Agency.