US Bridges

Ran Lynn DR/745 over Branch Back Creek

Good

Roanoke County, Virginia · 0.10-RTE690; 0.20-RTE221 · Structure no. 000000000015100

Built
1948
77 years old, rebuilt 2002
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
1,027
2022 count
Owner
State
State Highway Agency

About this bridge

Ran Lynn DR/745 over Branch Back Creek is a steel stringer/multi-beam or girder carrying Ran Lynn DR/745 over Branch Back Creek in Roanoke County, Virginia. It was built in 1948 and reconstructed in 2002, so it is 77 years old, older than the Virginia average of 50.7 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 1,027 vehicles a day, roughly 1% of them trucks, projected to reach 1,145 by 2042. The structure is 25 ft (7.6 m) long and 21 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRan Lynn DR/745
CrossesBranch Back Creek
Location0.10-RTE690; 0.20-RTE221
RouteCounty Highway 745
Coordinates37.20282, -80.03474
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating55 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,027 (2022)
Projected traffic1,145 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$908 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ran Lynn DR/745 over Branch Back Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2002.

What condition is Ran Lynn DR/745 over Branch Back 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 August 2024.

How much traffic does Ran Lynn DR/745 over Branch Back Creek carry?

About 1,027 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Ran Lynn DR/745 over Branch Back Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 21 ft wide.

Who owns Ran Lynn DR/745 over Branch Back Creek?

It is owned by the State Highway Agency.