US Bridges

Byrnes Road over Trib of Bayou Pierre

Fair

Claiborne County, Mississippi · Sec_ 8_T12N_R 5E · Structure no. SA1100000000069

Built
1976
49 years old
Condition
Fair
inspected January 2024
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
20
2023 count
Owner
County
County Highway Agency

About this bridge

Byrnes Road over Trib of Bayou Pierre is a concrete channel beam carrying Byrnes Road over Trib of Bayou Pierre in Claiborne County, Mississippi. It was built in 1976, so it is 49 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.

It carries about 20 vehicles a day, roughly 8% of them trucks, projected to reach 30 by 2043. The structure is 57 ft (17.4 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesByrnes Road
CrossesTrib of Bayou Pierre
LocationSec_ 8_T12N_R 5E
RouteCounty Highway 81
CountyClaiborne County
StateMississippi
Coordinates32.02897, -90.74269
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
Deck7 GoodSome minor problems.
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating65.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic30 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$208,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Byrnes Road over Trib of Bayou Pierre built?

It was built in 1976, making it 49 years old in 2025.

What condition is Byrnes Road over Trib of Bayou Pierre 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 January 2024.

How much traffic does Byrnes Road over Trib of Bayou Pierre carry?

About 20 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Byrnes Road over Trib of Bayou Pierre?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Byrnes Road over Trib of Bayou Pierre?

It is owned by the County Highway Agency.