US Bridges

CO RD 90 over Unnamed Stream

PoorPosted for load

Yalobusha County, Mississippi · Sec 17 T25N R 6E B · Structure no. SA8100000000068

Built
1973
52 years old
Condition
Poor
inspected September 2024
Type
Channel Beam
Concrete
Length
71 ft
3 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

CO RD 90 over Unnamed Stream is a concrete channel beam carrying CO RD 90 over Unnamed Stream in Yalobusha County, Mississippi. It was built in 1973, so it is 52 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 110 vehicles a day, roughly 8% of them trucks, projected to reach 165 by 2042. The structure is 71 ft (21.6 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCO RD 90
CrossesUnnamed Stream
LocationSec 17 T25N R 6E B
RouteCounty Highway 1806
Coordinates34.03633, -89.68828
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating16 US tons
Inventory rating8.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length71 ft (21.6 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic165 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$230,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CO RD 90 over Unnamed Stream built?

It was built in 1973, making it 52 years old in 2025.

What condition is CO RD 90 over Unnamed Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does CO RD 90 over Unnamed Stream carry?

About 110 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is CO RD 90 over Unnamed Stream?

The structure is 71 ft (21.6 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns CO RD 90 over Unnamed Stream?

It is owned by the County Highway Agency.