US Bridges

Sylvarena Road over Bayou Pierre River

FairPosted for load

Copiah County, Mississippi · Sec 24 T 9N R 7E B · Structure no. SA1500000000098

Built
1959
66 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
213 ft
1 main span
Daily traffic
1,200
2021 count
Owner
County
County Highway Agency

About this bridge

Sylvarena Road over Bayou Pierre River is a steel stringer/multi-beam or girder carrying Sylvarena Road over Bayou Pierre River in Copiah County, Mississippi. It was built in 1959, so it is 66 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 5 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 1,200 vehicles a day, roughly 8% of them trucks, projected to reach 1,800 by 2043. The structure is 213 ft (64.9 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesSylvarena Road
CrossesBayou Pierre River
LocationSec 24 T 9N R 7E B
RouteCounty Highway 318
Coordinates31.73303, -90.46094
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.8 US tons
Inventory rating13 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadH 15
Structure length213 ft (64.9 m)
Longest span80 ft (24.4 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2021)
Projected traffic1,800 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$282,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sylvarena Road over Bayou Pierre River built?

It was built in 1959, making it 66 years old in 2025.

What condition is Sylvarena Road over Bayou Pierre River 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 November 2024.

How much traffic does Sylvarena Road over Bayou Pierre River carry?

About 1,200 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Sylvarena Road over Bayou Pierre River?

The structure is 213 ft (64.9 m) long with a longest span of 80 ft (24.4 m) and a deck 24 ft wide.

Who owns Sylvarena Road over Bayou Pierre River?

It is owned by the County Highway Agency.