US Bridges

SR 42 over Robertson Creek

Good

Greene County, Mississippi · 5.1 MI W SR 57 · Structure no. 310004202110720

Built
1968
57 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
5 main spans
Daily traffic
540
2023 count
Owner
State
State Highway Agency

About this bridge

SR 42 over Robertson Creek is a prestressed concrete stringer/multi-beam or girder carrying SR 42 over Robertson Creek in Greene County, Mississippi. It was built in 1968, so it is 57 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.

It carries about 540 vehicles a day, roughly 18% of them trucks, projected to reach 540 by 2043. The structure is 200 ft (61 m) long and 33 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesSR 42
CrossesRobertson Creek
Location5.1 MI W SR 57
RouteState Highway 42
Coordinates31.42451, -88.55427
Functional classRural Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 alignment7: Better than present minimum criteria
Operating rating66.2 US tons
Inventory rating40.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length200 ft (61 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2023)
Projected traffic540 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 42 over Robertson Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is SR 42 over Robertson Creek 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 April 2024.

How much traffic does SR 42 over Robertson Creek carry?

About 540 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is SR 42 over Robertson Creek?

The structure is 200 ft (61 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns SR 42 over Robertson Creek?

It is owned by the State Highway Agency.