US Bridges

Rockhill-Brooklyn over Branch of Black Creek

FairPosted for load

Forrest County, Mississippi · Sec 16 T 1N R12W B · Structure no. SA1800000000016

Built
1977
48 years old
Condition
Fair
inspected December 2022
Type
Slab
Concrete
Length
95 ft
5 main spans
Daily traffic
220
2023 count
Owner
County
County Highway Agency

About this bridge

Rockhill-Brooklyn over Branch of Black Creek is a concrete slab carrying Rockhill-Brooklyn over Branch of Black Creek in Forrest County, Mississippi. It was built in 1977, so it is 48 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 220 vehicles a day, roughly 8% of them trucks, projected to reach 290 by 2043. The structure is 95 ft (29 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRockhill-Brooklyn
CrossesBranch of Black Creek
LocationSec 16 T 1N R12W B
RouteCounty Highway 1155
Coordinates31.04704, -89.21207
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.6 US tons
Inventory rating15.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length95 ft (29 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2023)
Projected traffic290 by 2043
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$485,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rockhill-Brooklyn over Branch of Black Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Rockhill-Brooklyn over Branch of Black Creek 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 December 2022.

How much traffic does Rockhill-Brooklyn over Branch of Black Creek carry?

About 220 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Rockhill-Brooklyn over Branch of Black Creek?

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

Who owns Rockhill-Brooklyn over Branch of Black Creek?

It is owned by the County Highway Agency.