US Bridges

Copiah Lake Road over Lake Copiah Spillway

Fair

Copiah County, Mississippi · Sec 4 T 1N R 2W B · Structure no. SA1500000000014

Built
1960
65 years old
Condition
Fair
inspected February 2023
Type
Channel Beam
Concrete
Length
76 ft
4 main spans
Daily traffic
120
2015 count
Owner
County
County Highway Agency

About this bridge

Copiah Lake Road over Lake Copiah Spillway is a concrete channel beam carrying Copiah Lake Road over Lake Copiah Spillway in Copiah County, Mississippi. It was built in 1960, so it is 65 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 120 vehicles a day, roughly 8% of them trucks, projected to reach 250 by 2046. The structure is 76 ft (23.2 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCopiah Lake Road
CrossesLake Copiah Spillway
LocationSec 4 T 1N R 2W B
RouteCounty Highway 168
CountyCopiah County
StateMississippi
Coordinates31.95456, -90.41053
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadH 15
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2015)
Projected traffic250 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$114,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Copiah Lake Road over Lake Copiah Spillway built?

It was built in 1960, making it 65 years old in 2025.

What condition is Copiah Lake Road over Lake Copiah Spillway 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 2023.

How much traffic does Copiah Lake Road over Lake Copiah Spillway carry?

About 120 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is Copiah Lake Road over Lake Copiah Spillway?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 21 ft wide.

Who owns Copiah Lake Road over Lake Copiah Spillway?

It is owned by the County Highway Agency.