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Strategic Road Network Structures 'Hot List'

16 Feb 2023 13:20 | Anonymous

List of structures which are causing significant diversionary routes and which has been highlighted for Trunk Road Agencies to target for their next round of funding requests.  Please provide feedback (to info@hta.uk.net) as to whether there are any other SRN structures that need adding to this list (NB: this list is not exhaustive and will be prone to change).

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Road

Restriction

Name

Location or Structure Ref

Area

Comment

A702

80,000kg

Bridge over Duneaton Water

Wandel

Scotland

TBA

M73

90,000kg

Slip road south to M74

M74 J14

Scotland

TBA

A19

46,000kg

Hylton Bridge

Sunderland

DBFO 26

Bridge is 40T ALL + 45 Units HB, so not especially restricted, subject to usual abnormal load procedures

M1(N)

44,000kg

Bridge over A635 Barugh Green East

J37/38

NH 12

Agreed capacity and not on heavy load route. Planned scheme to start on site by early 2023. subject to usual abnormal load procedures

A63

40,000kg

Flyover over Clive Sullivan Way Daltry Street Flyover

Hull

NH 12

Restriction not agreed. Limited to 40Te ALL + 17HB, or 20HB without associated ALL. So about 85 to 90Te abnormal load limit.  Not on heavy load route.                 There is an alternative route using the roundabout below.

M62

44,000kg

Bridge over River Ouse

J36/37

NH 12

Restriction not agreed. Bridge has 45HB capacity

M6

80,000kg

Bridge over River Dane

J18

NH 10

Concrete repairs ongoing and agreed that abnormal loads would be excluded and during the works the capacity would be 40T ALL only. However, this has been uprated to 80,000kg or 20 units HB.  At the end of the repair work (Dec 2023 planned) it is anticipated restrictions will be lifted and usual abnormal load procedures will apply.

A34

44,000kg

Bridge over River Thames

Wytham

NH 3

The load capacity of 44,000kgs is currently appropriate.  This was imposed in order to safeguard the structure (following uncertainty in the condition of the structure post-tensioning systems).  The structure is on the heavy load grid.  Investigations and a structural assessment are underway and depending on the results, there are plans to undertake work on the bridge (but unlikely before 2025).

A50 East

44,000kg

Bridge over River Dove

Uttoxeter

DBFO 28

44,000kg limit confirmed (not on Heavy Load Route).  The structure carries the eastbound carriageway of the A50 (Doveridge Bypass) over the River Dove, to the East of Uttoxeter.  No opportunity to strengthen structure.  DBFO Co are currently designing crossover points either side of the structure to enable heavy loads to traverse on the adjacent carriageway.  Both carriageways will need to be closed to enable this manoeuvre.

A14

52,000kg

Flyover

J51

NH 6

A14 J51 Beacons Hill Flyover South and North (2 structures).  The weight restriction of 52,000kg is correct.  The structure is not on a heavy load route.  There are no current plans to strengthen the structure.

A47

40,000kg

Bridge over River Ouse

Kings Lynn

NH 6

The structure is not on a heavy load route.   A weight restriction of 40,000kg has recently been put on this structure.  There are longer term plans to replace the structure after 2025.

M25 (anti)

84,000kg

Exit from tunnel bores (A282 Essex Viaduct)

J31

NH 5

Recorded capacity - 40T ALL +30HB.  The structure is on the heavy load grid.  Usual abnormal load procedures will apply.  Ongoing structural assessment. 

M25

80,000kg

Abbots Langley Viaduct (Gade Valley Viaduct)

J20/21

NH 5

Recorded capacity - 40T ALL +20HB however strengthening works are currently underway. The structure is on the heavy load grid.  Usual abnormal load procedures will apply.

M2/A2

44,000kg

Entire length

n/a

NH 4 & 5

There are no known load restrictions on these sections of road.  This is a heavy load route. There may be some width restrictions imposed.  Usual abnormal load procedures will apply.

M25

40,000kg

Roundabout above Jct 3 (2 bridges)

Swanley

NH 4

Recorded capacity - 40T ALL.  The structure is not on the heavy load grid.  Structure has undergone extensive maintenance and strengthening.  Planned refurbishment scheme 2023/24.  Usual abnormal load procedures will apply.

M2

44,000kg

Bridge over River Medway (4 bridges)

J2

NH 4

There are 4 bridges as detailed below, and none are on a heavy load route. The restrictions apply to all lanes in both directions:-

Medway River Bridge

Medway East Viaduct

New M2 Medway River Bridge

All above 40t with 45HB

Medway West Viaduct

40/44t with 20HB

M48

44,000kg

Old Severn Bridge

Severn Bridge

Agreed 44T weight limit (HGVs restricted to lane 1) due to the main cable assessment.  The structure is actively managed.  Not on the heavy load route.   An appropriate diversion using the Prince of Wales Bridge is available.

M4(W)

90,000kg

Jct18/19 Hambrook Viaduct E/B and W/B

Pucklechurch

SW

The restrictions are over 70t straddle lanes 1&2; over 90t no associated live load, full restriction over 140 Tonnes.  The structures are on a Heavy Load Route.  There is quite an easy diversion route via the Bristol Ring Road between junctions 18 and 19, (A46, A420, A4174), and this is used quite a lot.  No upgrading work planned.

M4

44,000kg + SV100

River Usk Bridge

J25a-J26

M4 25A-25A 38

SWTRA

Abnormal loads limited to SV100 (100T) with 'normal' traffic due to approach structures.

Diversion on A48 between J24 & J28.

M4

44,000kg or SV80 alone

St Jullian's Viaduct

J24-25

M4 24-25 59

SWTRA

Abnormal loads limited to SV80 (80T) without other traffic in the direction of traffic.

Diversion on A48 between J24 & J28.

M4

44,000kg + SV100

M4 over Ebbw River

J27-28

M4 27-28 81

SWTRA

Abnormal loads limited to SV100 (100T) with 'normal' traffic.

Diversion on A48 between J24 & J28.

M4

44,000Kg

M4 over B4290

J43

M4 43-44 2

SWTRA

Any abnormal load vehicles over C&U weight (44T) to divert off an on at J43.

M4

44,000kg + 21HB

Tawe River Bridge

J44-45

SWTRA

Abnormal loads limited to 21HB (84T) with 'normal' traffic.

Diversion on LA route between J44 and J45



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