US Bridges

Mo 102 E over Black Byu

FairPosted for load

Mississippi County, Missouri · S 12 T 23 N R 16 E · Structure no. 9195

Built
1935
90 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
3 main spans
Daily traffic
485
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 102 E over Black Byu is a steel stringer/multi-beam or girder carrying Mo 102 E over Black Byu in Mississippi County, Missouri. It was built in 1935, so it is 90 years old, older than the Missouri average of 45.1 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 485 vehicles a day, roughly 45% of them trucks, projected to reach 679 by 2044. The structure is 130 ft (39.6 m) long and 21 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesMo 102 E
CrossesBlack Byu
LocationS 12 T 23 N R 16 E
RouteState Highway 102
CountyMississippi County
StateMissouri
Coordinates36.65727, -89.28181
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating18.8 US tons
Inventory rating7.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length130 ft (39.6 m)
Longest span48 ft (14.6 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic485 (2024)
Projected traffic679 by 2044
Trucks45%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 102 E over Black Byu built?

It was built in 1935, making it 90 years old in 2025.

What condition is Mo 102 E over Black Byu 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 November 2024.

How much traffic does Mo 102 E over Black Byu carry?

About 485 vehicles per day (2024 count), of which roughly 45% are trucks.

How long is Mo 102 E over Black Byu?

The structure is 130 ft (39.6 m) long with a longest span of 48 ft (14.6 m) and a deck 21 ft wide.

Who owns Mo 102 E over Black Byu?

It is owned by the State Highway Agency.