US Bridges

Rt Dd E over Mid Fk Salt Rvr

FairPosted for load

Macon County, Missouri · S 25 T 58 N R 14 W · Structure no. 8075

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
129 ft
3 main spans
Daily traffic
386
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Dd E over Mid Fk Salt Rvr is a steel stringer/multi-beam or girder carrying Rt Dd E over Mid Fk Salt Rvr in Macon County, Missouri. It was built in 1961, so it is 64 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 386 vehicles a day, roughly 10% of them trucks, projected to reach 483 by 2044. The structure is 129 ft (39.3 m) long and 22 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRt Dd E
CrossesMid Fk Salt Rvr
LocationS 25 T 58 N R 14 W
RouteState Highway 0DD
CountyMacon County
StateMissouri
Coordinates39.80544, -92.42257
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19.8 US tons
Inventory rating11.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length129 ft (39.3 m)
Longest span50 ft (15.3 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2024)
Projected traffic483 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Rt Dd E over Mid Fk Salt Rvr built?

It was built in 1961, making it 64 years old in 2025.

What condition is Rt Dd E over Mid Fk Salt Rvr 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 September 2023.

How much traffic does Rt Dd E over Mid Fk Salt Rvr carry?

About 386 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Dd E over Mid Fk Salt Rvr?

The structure is 129 ft (39.3 m) long with a longest span of 50 ft (15.3 m) and a deck 22 ft wide.

Who owns Rt Dd E over Mid Fk Salt Rvr?

It is owned by the State Highway Agency.