US Bridges

Berwick/Sec RD over Drainage

Fair

Union County, Iowa · 071311813 · Structure no. 000000000006831

Built
1998
27 years old
Condition
Fair
inspected October 2022
Type
Slab
Wood or Timber
Length
42 ft
2 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

Berwick/Sec RD over Drainage is a wood or timber slab carrying Berwick/Sec RD over Drainage in Union County, Iowa. It was built in 1998, so it is 27 years old, younger than the Iowa average of 45.5 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.

It carries about 5 vehicles a day, projected to reach 5 by 2043. The structure is 42 ft (12.8 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBerwick/Sec RD
CrossesDrainage
Location071311813
RouteCounty Highway 0
CountyUnion County
StateIowa
Coordinates40.95377, -94.45866
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Berwick/Sec RD over Drainage built?

It was built in 1998, making it 27 years old in 2025.

What condition is Berwick/Sec RD over Drainage 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 October 2022.

How much traffic does Berwick/Sec RD over Drainage carry?

About 5 vehicles per day (2022 count).

How long is Berwick/Sec RD over Drainage?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Berwick/Sec RD over Drainage?

It is owned by the County Highway Agency.