US Bridges

Greenbriar Road over Tadpole Crk

GoodPosted for load

Monroe County, Mississippi · Sec 4 T14S R18W B · Structure no. SA4800000000109

Built
1969
56 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
31 ft
1 main span
Daily traffic
336
2024 count
Owner
County
County Highway Agency

About this bridge

Greenbriar Road over Tadpole Crk is a concrete channel beam carrying Greenbriar Road over Tadpole Crk in Monroe County, Mississippi. It was built in 1969, so it is 56 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 336 vehicles a day, roughly 10% of them trucks, projected to reach 465 by 2043. The structure is 31 ft (9.4 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesGreenbriar Road
CrossesTadpole Crk
LocationSec 4 T14S R18W B
RouteCounty Highway 1633
Coordinates33.88083, -88.44134
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic336 (2024)
Projected traffic465 by 2043
Trucks10%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$156,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Greenbriar Road over Tadpole Crk built?

It was built in 1969, making it 56 years old in 2025.

What condition is Greenbriar Road over Tadpole Crk in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Greenbriar Road over Tadpole Crk carry?

About 336 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Greenbriar Road over Tadpole Crk?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.

Who owns Greenbriar Road over Tadpole Crk?

It is owned by the County Highway Agency.