US Bridges

Austin RD over Br of Parsons CR

Good

Linn County, Missouri · S 20 T 60 N R 21 W · Structure no. 36027

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

Austin RD over Br of Parsons CR is a steel stringer/multi-beam or girder carrying Austin RD over Br of Parsons CR in Linn County, Missouri. It was built in 2017, so it is 8 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 60 ft (18.3 m) long and 21 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesAustin RD
CrossesBr of Parsons CR
LocationS 20 T 60 N R 21 W
RouteCounty Highway 3
CountyLinn County
StateMissouri
Coordinates40.01311, -93.27234
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 Austin RD over Br of Parsons CR built?

It was built in 2017, making it 8 years old in 2025.

What condition is Austin RD over Br of Parsons CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Austin RD over Br of Parsons CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Austin RD over Br of Parsons CR?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 21 ft wide.

Who owns Austin RD over Br of Parsons CR?

It is owned by the County Highway Agency.