US Bridges

Riverdale Rd. over Martin Creek

Good

Grenada County, Mississippi · Sec 25 T23N R 4E B · Structure no. SA2200000000058

Built
1999
26 years old
Condition
Good
inspected November 2023
Type
Channel Beam
Concrete
Length
88 ft
4 main spans
Daily traffic
240
2014 count
Owner
County
County Highway Agency

About this bridge

Riverdale Rd. over Martin Creek is a concrete channel beam carrying Riverdale Rd. over Martin Creek in Grenada 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 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 240 vehicles a day, roughly 8% of them trucks, projected to reach 360 by 2034. The structure is 88 ft (26.8 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesRiverdale Rd.
CrossesMartin Creek
LocationSec 25 T23N R 4E B
RouteCounty Highway 84
Coordinates33.82572, -89.83601
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating82.5 US tons
Inventory rating49.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2014)
Projected traffic360 by 2034
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Riverdale Rd. over Martin Creek built?

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

What condition is Riverdale Rd. over Martin 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 November 2023.

How much traffic does Riverdale Rd. over Martin Creek carry?

About 240 vehicles per day (2014 count), of which roughly 8% are trucks.

How long is Riverdale Rd. over Martin Creek?

The structure is 88 ft (26.8 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns Riverdale Rd. over Martin Creek?

It is owned by the County Highway Agency.