US Bridges

Mcallister RD over Stream

Good

Dubuque County, Iowa · 08701003 · Structure no. 000000000366705

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
21 ft
2 main spans
Daily traffic
78
2022 count
Owner
County
County Highway Agency

About this bridge

Mcallister RD over Stream is a steel culvert carrying Mcallister RD over Stream in Dubuque County, Iowa. It was built in 2021, so it is 4 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 78 vehicles a day, projected to reach 78 by 2043. The structure is 21 ft (6.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMcallister RD
CrossesStream
Location08701003
RouteCounty Highway 0
CountyDubuque County
StateIowa
Coordinates42.35797, -90.94703
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadOther
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78 (2022)
Projected traffic78 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 Mcallister RD over Stream built?

It was built in 2021, making it 4 years old in 2025.

What condition is Mcallister RD over Stream 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 November 2023.

How much traffic does Mcallister RD over Stream carry?

About 78 vehicles per day (2022 count).

How long is Mcallister RD over Stream?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m) and a deck 26 ft wide.

Who owns Mcallister RD over Stream?

It is owned by the County Highway Agency.