US Bridges

Prospect Rd. over Callahan Branch

FairPosted for load

Adams County, Mississippi · Sec 30 T 6N R 2W · Structure no. SA0100000000037

Built
1930
95 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
4 main spans
Daily traffic
50
2013 count
Owner
County
County Highway Agency

About this bridge

Prospect Rd. over Callahan Branch is a steel stringer/multi-beam or girder carrying Prospect Rd. over Callahan Branch in Adams County, Mississippi. It was built in 1930, so it is 95 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 50 vehicles a day, projected to reach 75 by 2035. The structure is 100 ft (30.5 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesProspect Rd.
CrossesCallahan Branch
LocationSec 30 T 6N R 2W
RouteCounty Highway 40
CountyAdams County
StateMississippi
Coordinates31.49396, -91.28363
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating47.3 US tons
Inventory rating28.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span36 ft (11 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic75 by 2035
Trucks—
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$432,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Prospect Rd. over Callahan Branch built?

It was built in 1930, making it 95 years old in 2025.

What condition is Prospect Rd. over Callahan Branch 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 2023.

How much traffic does Prospect Rd. over Callahan Branch carry?

About 50 vehicles per day (2013 count).

How long is Prospect Rd. over Callahan Branch?

The structure is 100 ft (30.5 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns Prospect Rd. over Callahan Branch?

It is owned by the County Highway Agency.