US Bridges

Macedonia Road over Riles Creek

FairPosted for load

Simpson County, Mississippi · Sec 23 T 1N R 4E B · Structure no. SA6400000000024

Built
1975
50 years old, rebuilt 2018
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
126 ft
6 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

Macedonia Road over Riles Creek is a concrete channel beam carrying Macedonia Road over Riles Creek in Simpson County, Mississippi. It was built in 1975 and reconstructed in 2018, so it is 50 years old, older 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 8% of them trucks, projected to reach 225 by 2042. The structure is 126 ft (38.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMacedonia Road
CrossesRiles Creek
LocationSec 23 T 1N R 4E B
RouteCounty Highway 171
Coordinates31.90548, -89.86198
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating39.6 US tons
Inventory rating23.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadH 15
Structure length126 ft (38.4 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 traffic150 (2022)
Projected traffic225 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$358,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Macedonia Road over Riles Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2018.

What condition is Macedonia Road over Riles Creek 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 February 2024.

How much traffic does Macedonia Road over Riles Creek carry?

About 150 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Macedonia Road over Riles Creek?

The structure is 126 ft (38.4 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns Macedonia Road over Riles Creek?

It is owned by the County Highway Agency.