US Bridges

Grundy RD over Trib to Beaver Creek

Good

Black Hawk County, Iowa · 89-14-20-02-10 · Structure no. 000000000075921

Built
1997
28 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Grundy RD over Trib to Beaver Creek is a steel stringer/multi-beam or girder carrying Grundy RD over Trib to Beaver Creek in Black Hawk County, Iowa. It was built in 1997, so it is 28 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 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 26 ft (7.9 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesGrundy RD
CrossesTrib to Beaver Creek
Location89-14-20-02-10
RouteCounty Highway 0
StateIowa
Coordinates42.50274, -92.53427
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating91.8 US tons
Inventory rating71.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2043
Trucks0%
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 Grundy RD over Trib to Beaver Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Grundy RD over Trib to Beaver Creek 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 2022.

How much traffic does Grundy RD over Trib to Beaver Creek carry?

About 59 vehicles per day (2022 count).

How long is Grundy RD over Trib to Beaver Creek?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Grundy RD over Trib to Beaver Creek?

It is owned by the County Highway Agency.