US Bridges

Tanglewood RD over Crow Creek

Good

Scott County, Iowa · Bettendorf Ia · Structure no. 000000000501441

Built
2010
15 years old
Condition
Good
inspected July 2023
Type
Truss - Thru
Steel
Length
76 ft
1 main span
Daily traffic
40
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Tanglewood RD over Crow Creek is a steel truss - thru carrying Tanglewood RD over Crow Creek in Scott County, Iowa. It was built in 2010, so it is 15 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 40 vehicles a day, projected to reach 40 by 2043. The structure is 76 ft (23.1 m) long and 18 ft wide.

Location

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CarriesTanglewood RD
CrossesCrow Creek
LocationBettendorf Ia
RouteCity Street 0
CountyScott County
StateIowa
Coordinates41.56089, -90.46494
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating37.3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length76 ft (23.1 m)
Longest span76 ft (23.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic40 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Tanglewood RD over Crow Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Tanglewood RD over Crow 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 July 2023.

How much traffic does Tanglewood RD over Crow Creek carry?

About 40 vehicles per day (2022 count).

How long is Tanglewood RD over Crow Creek?

The structure is 76 ft (23.1 m) long with a longest span of 76 ft (23.1 m) and a deck 18 ft wide.

Who owns Tanglewood RD over Crow Creek?

It is owned by the City or Municipal Highway Agency.