US Bridges

County RD 3620 over Br of Dry Fk CR

Good

Phelps County, Missouri · S 28 T 38 N R 6 W · Structure no. 37154

Built
2024
1 years old
Condition
Good
inspected February 2025
Type
Channel Beam
Concrete
Length
55 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 3620 over Br of Dry Fk CR is a concrete channel beam carrying County RD 3620 over Br of Dry Fk CR in Phelps County, Missouri. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 130 by 2044. The structure is 55 ft (16.8 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCounty RD 3620
CrossesBr of Dry Fk CR
LocationS 28 T 38 N R 6 W
RouteCounty Highway 128
Coordinates37.98805, -91.57044
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating56.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span55 ft (16.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic130 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 County RD 3620 over Br of Dry Fk CR built?

It was built in 2024, making it 1 years old in 2025.

What condition is County RD 3620 over Br of Dry Fk 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 February 2025.

How much traffic does County RD 3620 over Br of Dry Fk CR carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 3620 over Br of Dry Fk CR?

The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 25 ft wide.

Who owns County RD 3620 over Br of Dry Fk CR?

It is owned by the County Highway Agency.