US Bridges

County RD 708 over Perkins CR

Fair

Bollinger County, Missouri · S 20 T 29 N R 9 E · Structure no. 18874

Built
1920
105 years old, rebuilt 1989
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 708 over Perkins CR is a steel stringer/multi-beam or girder carrying County RD 708 over Perkins CR in Bollinger County, Missouri. It was built in 1920 and reconstructed in 1989, so it is 105 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2044. The structure is 77 ft (23.5 m) long and 17 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

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CarriesCounty RD 708
CrossesPerkins CR
LocationS 20 T 29 N R 9 E
RouteCounty Highway 202
CountyBollinger County
StateMissouri
Coordinates37.16594, -90.085
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length77 ft (23.5 m)
Longest span36 ft (11 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic65 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 708 over Perkins CR built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1989.

What condition is County RD 708 over Perkins 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 November 2023.

How much traffic does County RD 708 over Perkins CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 708 over Perkins CR?

The structure is 77 ft (23.5 m) long with a longest span of 36 ft (11 m) and a deck 17 ft wide.

Who owns County RD 708 over Perkins CR?

It is owned by the County Highway Agency.