US Bridges

SR 9 Ramp over Coonewah Bottom

Good

Pontotoc County, Mississippi · 2.2 MI S US 78 · Structure no. 370000905809430

Built
2012
13 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
162 ft
1 main span
Daily traffic
560
2023 count
Owner
State
State Highway Agency

About this bridge

SR 9 Ramp over Coonewah Bottom is a prestressed concrete stringer/multi-beam or girder carrying SR 9 Ramp over Coonewah Bottom in Pontotoc County, Mississippi. It was built in 2012, so it is 13 years old, younger 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 560 vehicles a day, roughly 10% of them trucks, projected to reach 560 by 2043. The structure is 162 ft (49.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 9 Ramp
CrossesCoonewah Bottom
Location2.2 MI S US 78
RouteState Highway 9
Coordinates34.31733, -88.87399
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating38.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length162 ft (49.3 m)
Longest span80 ft (24.4 m)
Deck width53 ft (16.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2023)
Projected traffic560 by 2043
Trucks10%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 9 Ramp over Coonewah Bottom built?

It was built in 2012, making it 13 years old in 2025.

What condition is SR 9 Ramp over Coonewah Bottom 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 SR 9 Ramp over Coonewah Bottom carry?

About 560 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 9 Ramp over Coonewah Bottom?

The structure is 162 ft (49.3 m) long with a longest span of 80 ft (24.4 m) and a deck 53 ft wide.

Who owns SR 9 Ramp over Coonewah Bottom?

It is owned by the State Highway Agency.