US Bridges

Iron Bridge RD over Dousinbury CR

Fair

Dallas County, Missouri · S 11 T 33 N R 18 W · Structure no. 32135

Built
2007
18 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

Iron Bridge RD over Dousinbury CR is a steel stringer/multi-beam or girder carrying Iron Bridge RD over Dousinbury CR in Dallas County, Missouri. It was built in 2007, so it is 18 years old, younger 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 250 vehicles a day, roughly 10% of them trucks, projected to reach 350 by 2043. The structure is 46 ft (14 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIron Bridge RD
CrossesDousinbury CR
LocationS 11 T 33 N R 18 W
RouteCounty Highway 0
CountyDallas County
StateMissouri
Coordinates37.58996, -92.8735
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating85.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span44 ft (13.4 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic350 by 2043
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Iron Bridge RD over Dousinbury CR built?

It was built in 2007, making it 18 years old in 2025.

What condition is Iron Bridge RD over Dousinbury CR 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 March 2024.

How much traffic does Iron Bridge RD over Dousinbury CR carry?

About 250 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Iron Bridge RD over Dousinbury CR?

The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 20 ft wide.

Who owns Iron Bridge RD over Dousinbury CR?

It is owned by the County Highway Agency.