US Bridges

Devils Glen RD over Spencer Creek

Good

Scott County, Iowa · N of I-80 S Indiana Ave · Structure no. 000000000000693

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
42
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Devils Glen RD over Spencer Creek is a prestressed concrete stringer/multi-beam or girder carrying Devils Glen RD over Spencer Creek in Scott County, Iowa. It was built in 2016, so it is 9 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 42 vehicles a day, roughly 5% of them trucks, projected to reach 42 by 2043. The structure is 103 ft (31.4 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesDevils Glen RD
CrossesSpencer Creek
LocationN of I-80 S Indiana Ave
RouteCity Street 0
StateIowa
Coordinates41.60115, -90.48103
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating24.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2022)
Projected traffic42 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
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 Devils Glen RD over Spencer Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Devils Glen RD over Spencer 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 Devils Glen RD over Spencer Creek carry?

About 42 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Devils Glen RD over Spencer Creek?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 33 ft wide.

Who owns Devils Glen RD over Spencer Creek?

It is owned by the City or Municipal Highway Agency.