US Bridges

Big Woods RD over Trib to Cedar River

Good

Black Hawk County, Iowa · 90-13-18-02-10 · Structure no. 000000000076601

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
60
2023 count
Owner
County
County Highway Agency

About this bridge

Big Woods RD over Trib to Cedar River is a steel stringer/multi-beam or girder carrying Big Woods RD over Trib to Cedar River in Black Hawk County, Iowa. It was built in 2024, so it is 1 years old, younger than the Iowa average of 45.5 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.

It carries about 60 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2044. The structure is 40 ft (12.3 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBig Woods RD
CrossesTrib to Cedar River
Location90-13-18-02-10
RouteCounty Highway 0
StateIowa
Coordinates42.61151, -92.4361
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 protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.3 m)
Longest span39 ft (11.9 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic60 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Big Woods RD over Trib to Cedar River built?

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

What condition is Big Woods RD over Trib to Cedar River 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 September 2024.

How much traffic does Big Woods RD over Trib to Cedar River carry?

About 60 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Big Woods RD over Trib to Cedar River?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns Big Woods RD over Trib to Cedar River?

It is owned by the County Highway Agency.