US Bridges

Rocky Branch Road over Graves Creek

GoodPosted for load

Marion County, Mississippi · Sec 20 T 4N R17W B · Structure no. SA4600000000100

Built
1985
40 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Rocky Branch Road over Graves Creek is a prestressed concrete stringer/multi-beam or girder carrying Rocky Branch Road over Graves Creek in Marion County, Mississippi. It was built in 1985, so it is 40 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. Its operating status is: posted for load restriction.

It carries about 200 vehicles a day, roughly 8% of them trucks, projected to reach 230 by 2046. The structure is 120 ft (36.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRocky Branch Road
CrossesGraves Creek
LocationSec 20 T 4N R17W B
RouteCounty Highway 137
Coordinates31.29174, -89.72726
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.8 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic230 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Rocky Branch Road over Graves Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Rocky Branch Road over Graves Creek 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 March 2024.

How much traffic does Rocky Branch Road over Graves Creek carry?

About 200 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Rocky Branch Road over Graves Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Rocky Branch Road over Graves Creek?

It is owned by the County Highway Agency.