US Bridges

CO RD 511 over Tallabogue Relief

Fair

Clarke County, Mississippi · Sec 20 T 2N R17E B · Structure no. SA1200000000068

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
95 ft
500 main spans
Daily traffic
910
2024 count
Owner
County
County Highway Agency

About this bridge

CO RD 511 over Tallabogue Relief is a concrete channel beam carrying CO RD 511 over Tallabogue Relief in Clarke County, Mississippi. It was built in 1975, 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.

It carries about 910 vehicles a day, roughly 8% of them trucks, projected to reach 1,365 by 2044. The structure is 95 ft (29 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCO RD 511
CrossesTallabogue Relief
LocationSec 20 T 2N R17E B
RouteCounty Highway 346
Coordinates31.99703, -88.58305
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.8 US tons
Inventory rating29.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans500
Design loadH 15
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic910 (2024)
Projected traffic1,365 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$650,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 511 over Tallabogue Relief built?

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

What condition is CO RD 511 over Tallabogue Relief 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 October 2024.

How much traffic does CO RD 511 over Tallabogue Relief carry?

About 910 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is CO RD 511 over Tallabogue Relief?

The structure is 95 ft (29 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns CO RD 511 over Tallabogue Relief?

It is owned by the County Highway Agency.